Support Department APPLICATION NOTE Subject
Contents
1. Local intranet gt This zone contains all eb sites that are on pour organization s intranet Security level for thi zone Custom Custom settings To change the settings click Custom Level use the recommended settings click Default Level Custom Level Default Level Security Settings Settings Enable 164 Download signed ActiveX controls C Disable Enable Prompr F Download unsigned Actives controls Disable C Enable Prompt i 64 Initialize and script Actives controls not marked as safe Disable C Enable Prompr h fru mas leu Ira coe e cen CT s Reset custom settings Reset En Windows Vista En caso de que el usuario tenga alg n problema con la instalaci n del OCX sobre Windows Vista cuando accede por primera vez a la p gina web de control del equipo por favor deshabilite el User Access Control Control de Acceso de Usuario intente de nuevo acceder a la p gina web de control y vuelve a habilitar el UAC en caso que lo considere oportuno Esto deber acerse cada vez que se actualice el firmware del equipo Cada version de firmware lleva un OCX nuevo que requiere instalaci n s lo la primera vez que se accede a la p gina web de control para esa versi n Si la unidad es actualizada dependiendo de la configuraci n de cach del navegador Int2. i d e Forts m SNMP 3 Ethernet Port i EM ISDN Edit Book Entry 2 Mame Codec WA Call Type ISDN IP 7 IP MultiUnicast I Z a 111 IPs Tx 3 Password 11 IP YY XX ZZ WW 50010 Type Unicast Bidirectional E Aux Data p Version 14 IP Type Unicast Unidirectional Rx Note that each BOOK entry must meet the correct Base Port of the destination So far the settings for the West site The whole procedure must be repeated for the East site This is e Port Forwarding provision on the eastern gateway It is not necessary to meet the same port ranges given at the West site e Port definition at each eastern codec according East gateway provision e BOOK entries at each western codecs for their mates when using Prodys Proprietary Protocols For initiating a call the destination IP address must be dialled together with the proper destination Base Port If all western codecs are registered at each eastern codec any eastern codec is able to receive an incoming call from any western codec Prodys Support Department Prodys IP FAQ 23 Prodys e Prodys Support Department Application Note 24 is DIAL Le Codec 1 Audio Mode AUTO Change Te YY XX ZZ WW 50100 Call Type Unicast Bidirectional Discover Entry Name IP Audio Mode 1 Codec WC Tx1 YYXXZLWW DID Cancel 4 CONTROLLING THE UNIT FROM TH
3. Rs ei m ep dl Restore Default E Outputs ae bici Export Import Restore Default scene p Ones be Presets AAA 7 Sus figure 7 The First Port number can be any available port number for the gateway We recommend to agree with your network administrator which the port ranges are fully available for the codecs for not to overlap with other IP services of your network Map port 0 means for most of the router configuration that the external port number matches the port number for the local area network Given an example an incoming request from the WAN interface to the port number 50073 will be forwarded to the codec B on the same port number 50073 In other case one port by one must be defined according the Prodys Family User Manual Ports 5X60 and 5X04 in this example are only used in case of using SIP protocol Prodys Support Department Prodys IP FAQ 21 Prodys e Prodys Support Department Application Note 22 In case of using SIP for establishing IP audio connections the configuration window would be the following Configuration Streaming Protocol SIF SIP Port 50120 Audio Part 30114 T Password v Public IP Address 11 22 e Data EL Protocol Export Import Restare Default figure 8 Any SIP port and Audio port inside the gateway assigned range is valid In this way each codec is defined with different SIP and Audio po
4. Application Note 20 3 3 ARRAY OF CODECS IN A BACK TO BACK CONFIGURATION This section describes an example of how to match an array of four Prodys Family codecs with a mate array of four Prodys codecs at an opposite place The following arrangement allows to share up to four high quality audio stereo signals between both sites The same procedure can be extended for any number of codecs inside the array PRONTONET Codec WB MATENS 4 ne lt gt races NEREUS One WEST il M Codec WA B pa Codec WC E Codec WD Pads Codec EB Codec EA It is assumed one IP gateway at each place labeled as WEST and EAST In this way the WAN IP address of the router determines the external internet address of all four codecs behind this gateway Let us write a place holder for this example as e YY XX ZZ WW any valid external IP address of your IP backbone or IP provider IP address gateway at site West e YY XX ZZ EE any valid external IP address of your IP backbone or IP provider IP address gateway at site East Behind the gateway West four codecs are available on the LAN Let us write a place holder any valid local IP address for this example as LL YY WW AA codec A LL YY WW BB codec B LL YY WW CC codec C LL YY WW DD codec D The next step is to avoid confusion when four Prodys Family codecs has to be addressed by means of one single gateway thus sharing one common Public or External IP addre
5. Multicast traffic Prodys Support Department Prodys IP FAQ 13 Pod Prodys Support Department Application Note 14 ICMP IP control protocol HTTP A embedded web server allows the user to monitor configure the unit from an Internet Explorer Web Browser RIP2 Internal alias IP address can be assigned SMTP Simple mail transfer protocol Allows the user to send email alarm notifications SNTP Simple network time protocol Time synchronization between units UDP port number 123 SNMP Simple network management protocol over UDP on port number 161 2 8 PRODYS IPV4 ADDRESSES Prodys factory default settings for the IP parameters are IPv4 address 192 168 100 100 Netmask 255 255 255 0 For further information about multicast please read the IP Addressing Overview ppt file available in the Prodys site download section The user can restore these default settings by pulling down DIP switch number 7 and power cycling the unit After that the user can establish different values for these parameters either from the front panel or from the web page Do not forget to pull the DIP switch up in order to maintain these settings 2 9 PRODYS PORTS FOR PRODYS PROPRIETATY PROTOCOLS V1 amp V2 These are the default ports used by Prodys IP Codecs for their IP connections HeraFlash amp Prodys Control UDP 50013 Web Page TCP 80 HTTP TCP 50011 Web Page TCP 50017 ProdysControl Audio Streaming TCP 50019 P
6. RTCP Control UDP 50021 P RTP Unicast L1 UDP 50023 P RTP Unicast L2 UDP 50025 PX RTP Multicast L1 UDP 50027 PX RTP Multicast L2 UDP 50037 P AUXP Datos auxiliares from version 4 8 0 on UDP 50039 P UbP U BITs from version 4 8 0 on Test Streaming Tool TCP 50033 UDP 50033 Prodys Support Department Prodys IP FAQ Prodys e m Prodys Support Department Application Note 15 External Protocol P XP TCP 50031 Control Port TCP 50035 Status Port An ICMP ping packet is sent every 3 seconds in order to check connection integrity From version 4 8 0 on this protocol has been removed HeraFlash Prodys upgrading application ProdysControl This application allows the user to control several and different units from the same screen and in real time Test Streaming Tool This is an application built into the web page to measure the quality of the connection bandwidth delay jitter packet loss and packet disorder From version 4 8 0 on it is possible to change these ports There are two different groups of ports Web Server Port By default it is TCP port 80 This is the internal web server port Base Port By default it is 50011 for TCP and UDP ports This is the first port of the range of ports used by the unit From this base port up to 30 ports should opened forwarded That is if the base port is set to 50011 the range of ports goes from 50011 to 50041 both for UDP and TCP should be opened forwarded i
7. appropriate value for this parameter is a trade off between delay and bandwidth The larger the block size TBP the higher the delay but the smaller the required bandwidth and overhead more efficient use of IP packets and vice versa B If there is no delay requirements in the connection it is always advisable to select the highest value since bandwidth will be smaller 1 This is an example screen for ProntoNet Prodys Support Department Prodys IP FAQ 27 prodys e Prodys Support Department Application Note 28 Also the more frames over the network with small TBP values frames decrease in size and increase in number the more likely it is that the jitter will grow NOTE Keep in mind that there are compression algorithms that introduce delay itself When that delay is higher than the TBP minimum value the value is automatically adapted to the algorithm to the values shown on the left and user is not allowed to change it given that it does not make sense to increase it and it is not possible to be decreased due to the codification process 5 3 STREAMING RX JITTER CORRECTION BUFFER Once the user knows the jitter value of the IP connection the jitter buffer should be set m Jitter Value is the difference between the maximum and minimum delay If the jitter value is O it means that the delay is constant and it is not necessary to adjust the jitter correction buffer in the reception side If the delay is no
8. is used by default to send receive audio data The typical problem is when this communication is being established across different networks through two routers one at either end In this case these ports or the new ones configured by the user have to be opened and forwarded to the corresponding Codec IP address The ICMP and multicast traffic have to be also enabled in the routers only for versions prior to 4 8 0 Prodys Support Department Prodys IP FAQ 35 Prodys Prodys Support Department Application Note 36 Take into account that only a small part of the Internet called Mbone supports multicast traffic so to send multicast traffic over the Internet a technique called tunneling must be used VPN networks can be used for this purpose For a brief introduction to VPN please take a look at the document called VPN ppt available in the Prodys site download section Note From version 5 2 1 onwards it is possible to obtain network related parameters such as jitter lost or disordered packets in real time during the audio connection To be able to get all this information Proprietaty Protocol V2 should be configured as audio protocol This protocol is not compatible with the previous one version 1 so it could lead to confusion given that it would not be possible to establish a connection between ProntoNet when the protocol version does not match 6 8 INTERRUPTIONS TO AUDIO WHEN CONNECTING TWO CODECS 1 A decisive factor in
9. real time audio streaming is the jitter or delay variation To deal with the jitter in the connection the Prodys IP Codecs provide a tool which allows the user to modify the size of the reception buffer and so to compensate for the jitter The maximum value for this buffer is 500 msc 10 sc from version 4 7 1 on This buffer has to be configured from the web page to be after adding to the TBP value at least the same as the jitter in milliseconds The jitter can be measured from the Test streaming tool provided from the web page See chapter Streaming Rx 2 The audio interruptions could be due to a reduction on the bandwidth in the IP connection With the Test Streaming tool from the web page the user can measure the download and upload bandwidth between two Prodys IP codecs such as PortaNets Once the user knows the available bandwidth it is possible to select the proper bit rate for the compression mode See chapter Test Streaming Tool The user can obtain information about the delay of the encoder decoder process for any particular mode and the actual bandwidth which will be required for that mode from the web page in the audio tab In addition in the non block modes like PCM or apt X it is possible to modify the size of the frames from 2 to 24 msc In the rest of the modes this size is fixed and determined by the corresponding standard The larger the block size the higher the delay but the s
10. should be left empty Prodys Support Department Prodys IP FAQ 10 Prodys e Prodys Support Department Application Note 11 E Configuration Streaming Protocol SIP SIP Part F CBS e Sus Audio 007 2 Timedate SB Password J Public IP Address 80 80 100 201 A Aus Data AE Version Register in server Alarms 3600 ay Advanced 2 43 Streaming E M Protocol NOTE There are different ways to discover automatically the Public IP Address from the codec which are expected to be included in the next firmware version 2 6 2 2 SIP Server Registration If a SIP Server is to mediate the signalling between two calling parties each codec has to register on this server Server IP IP address of the SIP Server At this place the codec registers periodically the proper user information for full protocol support Timeout Period in seconds for refreshing the user information registered Username Your alias on the Internet regardless of your current IP address this alias you are identified for other SIP participants This username will be sent along with user and password information to the SIP server Server user amp password Most SIP servers requires authentication before proceeding registering of SIP users This parameters should be assigned to you by the SIP Server administrator Prodys Support Department Prodys IP FAQ 11 Prodys e Prodys Sup
11. the Jitter Correction Buffer in the reception side and the Time Between Packets in the transmission side 5 2 STREAMING TX TIME BETWEEN PACKETS TBP NOTE Bear in mind that this is a transmission parameter so it won t be available for those units like ProntoNet IP Decoder which does not have encoding capabilities Access this by pressing the SYS button on the web interface select STREAMING TX You will be presented with a screen similar to below Configuration 29 PORTS 8 LAN ISDN Encoder PT X ENH 16Bits 256Kbps 15 ST Line 1 Time Between Packets Unicast Bandwidth 368 Kbps TIMEDATE Packet Size PASSWORD dE AUX DATA Multicast VERSION Bandwidth 472 e ea Packet Size Min Auto Del a Mes Streaming Packets Time To Live 84 TTE 32 9 8 Test Cancel From this window the user can know beforehand the bandwidth and delay of the connection With a low delay algorithm such us apt X set to its lowest delay setting and with the algorithm data rate set to 256Kps the network bandwidth required is 368Kps e an overhead of 30 4 This gives a minimum audio delay of 10ms end to end add this to any delays from network switches routers etc but the maximum bandwidth for this compression mode settings B So Time Between Packets parameter is directly related with the packet size and therefore with the occupied bandwidth overhead and delay Therefore the
12. 13 2 8 PRODYS IPV4 5 5 nnn 14 2 9 PRODYS PORTS FOR PRODYS PROPRIETATY PROTOCOLS V1 amp v2 14 2 10 ROUTER CONFIGURATION surcar ir a 16 3 EXAMPLES OF PORT SETUP FOR CALLING OVER IP 17 3 1 DIFFERENT NETWORK TOPOLOGIES AND PORT CONFIGURATION 17 3 2 ONE IO ONE TOPOLOGY essa dani 18 3 3 ARRAY OF CODECS IN A BACK TO BACK CONFIGURATION cscececececucacacacecavenenanans 20 4 CONTROLLING THE UNIT FROM THE WEB nnnm nnn 24 4 1 WHAT S CLUSTER OCX FILES 25 5 MEASURING THE IP LINK BEFORE 26 5 1 TEST STREAMING TOOL 26 5 2 STREAMING TX TIME BETWEEN PACKETS cnn 27 5 3 STREAMING RX JITTER CORRECTION 28 5 4 REAL TIME NETWORK ANALYZER 29 6 PROS nani 31 6 1 WEB PAGE CANNOT BE ACCESSED 31 6 2 MICROSOFT INTERNET EXPLORER BLOCKS OCX INSTALLA
13. 22 APTX Up to 3 Tx 1 Rx As can be seen there is an independent control bar for each connection Each of the connection bars will show the line status in real time In addition it is possible to make or hang up several connections at the same time by using the Group Call and Disconnect All buttons respectively 2 5 PRODYS PROTOCOLS Prodys developed its own proprietary protocols to carry out IP streaming connections due to the lack of a standard in this regard e Prodys Real Time Control Protocol P RTCP This is a protocol based on TCP that allows for the establishment and termination of a connection as well as for the negotiation of the codec mode automatic audio synchronisation in all modes Prodys Real Time Protocol P RTP This is a protocol based on UDP used for the transmission of audio Prodys eXtended Real Time Protocol PX RTP This is a protocol based on UDP used for the transmission of multicast audio e Prodys Upgrading Identifying Protocol This protocol is based on UDP and used to identify upgrade the units e Prodys External Protocol P XP This protocol is based on TCP and can be used for controlling the units from an application other than the web page or ProdysControl Prodys Support Department Prodys IP FAQ 7 Prodys e Prodys Support Department Application Note 8 e Prodys Auxiliary Data Protocol P AUXP This protocol is based on UDP and used for transmitting receiving auxi
14. E WEB PAGE All Prodys IP codecs units come with the following IP settings IP address 192 168 100 100 Subnet mask 255 255 255 0 1 Configure your PC s TCP IP settings to IP address 192 168 100 X for example 192 168 100 1 Subnet mask 255 255 255 0 2 Open your Microsoft Internet Explorer Type in the unit s IP address 192 168 100 100 into the Internet Explorer s address bar 3 First time you connect to a Prodys IP Codec via Internet Explorer you will be asked to install the OCX file Click on Install then click on OK in the Login window 4 Select whether to control and monitor or only monitor the unit with the corresponding button The password is empty till the user set a different one Prodys Support Department Prodys IP FAQ 24 prodys e Prodys Support Department Application Note 25 1 When the default ports have been changed click on the advance features button of the login window 9 ES Password and specify the base port which we want to connect to 2 P Password m O Timeout 2 5 Once the web page appears the user can change the IP settings of the codec to those required by the user s network In this case the computer IP settings should be configured accordingly Note If you can t access the codec web page sure that a The codec and the PC have the right IP settings If you do not know the codec IP address make a factory default reset by re
15. On Receiving data Link Status On Connected Speed Status On 100M Off 10M However regarding the duplex mode Prodys IP Codecs can detect this automatically when starting but this mode cannot be changed after that on the fly till the next starting In addition the unit will set full duplex mode by default when the unit is not connected to any Ethernet device when starting For further information about this please read the Ethernet Overview ppt available in the Prodys site download section Prodys encourage the user not to use old 10Mbps half duplex hubs with their IP Codecs due to the low speed and performance of the half duplex technology Note Direct connection between a Prodys IP Codec and a PC needs crossover 5 cable If you use a switch or hub normal CAT5 cables can be used Note From version 5 2 1 onwards it is possible to configure the speed and duplex settings to a fixed value not auto negotiation 1 1 CONNECTING TO A HUB OR SWITCH In the majority of cases you can simply connect the unit s LAN port to your Ethernet network s Hub or Switch using an Ethernet cable CAT5 In this case you should use a standard straight through Ethernet cable not a cross over cable This kind of cable can normally be found in any IT shop In any case this cable is described in more detail below Prodys Support Department Prodys IP FAQ 3 Prodys e Prodys Support Department Application Note 4 Straight
16. Prodys Support Department Application Note 1 Support APPLICATION NOTE Department Subject Prodys IP FAQ 1 0 3 06 36 date 08 Prodys Support Department Prodys FAQ 1 Pod Prodys Support Department Application Note 2 INTRODUCTION tadas 1 ETHERNET CONNECTION 1 1 9 CONNECIING TO A HUB OR 1 2 XCONINECTING PC 4 2 PROTOCOLS ADDRESSES PORTS AND ROUTER CONFIGURATION 4 2 1 UNICAST COMMUNICATIONS hh hehehe rura rrr 4 2 1 1 ESTABLISHING A UNICAST 5 2 2 MULTICAST COMMUNICATIONS 5 2 3 ESTABLISHING MULTICAST COMMUNICATION FROM THE 5 2 4 MULTI UNICAST COMMUNICATIONS hh hh 6 2 5 5 PROD Yo PROTOCOLS adriana 7 2 6 EBU TECH 3326 STANDARD FOR AUDIO OVER 9 2 6 1 Enabling SIP protocol for Prodys IP codecs 9 2 len 10 203 Calling Pri 12 2 6 4 Port configuration on the router for SIP oos nnn 13 2 OTHER NOT AUDIO NETWORK Hmmm mmm mmm
17. T Rm dl PROMTOMET PRONTONET IP DECODER ara S MERELS 3 2 ONE TO ONE TOPOLOGY This section describes how to connect two codecs over an IP backbone or Internet in a one to one scenario where only one codec is placed behind the router gateway 50019 amp UDP 50021 to 50019 amp UDP 10 0 0 2 IGMP enabled 192 168 1 2 enabled IP s 10 0 0 2 10 0 0 1 80 50 50 50 80 50 50 51 192 168 1 1 192 158 1 2 It is assumed one IP gateway at each place labelled as WEST and EAST In this way the WAN IP address of the router determines the external internet address of the codec behind this gateway Prodys Support Department Prodys IP FAQ 18 prodys e Prodys Support Department Application Note 19 B In order to call from WEST to EAST the user has to call to the Internet or public IP address of the EAST router 80 50 50 51 If we try to call to the local IP address 192 168 1 2 it will be consider a LAN address and the connection will not succeed B Router NAT configuration Let all Prodys ports packets pass through and be forwarded to local IP address of ProntoNet 10 0 0 2 or 192 168 1 2 Please refer to the user manual of your router usually you have to look for NAT PAT or Port Forwarding description of your network device Here follows an example of NAT NAPT configuration for the labelled as WEST Entry for router First port Last port Local address Map p
18. TION WHEN TRYING TO ACCESS THE CODEC WEB PAGE css ada das 32 6 3 MICROSOFT WINDOWS VISTA BLOCKS OCX INSTALLATION WHEN TRYING TO ACCESS THE CODEC WEB PAGE ios 34 6 4 WHEN ACCESSING THE PORTANET WEB PAGE THE CONNECTION BETWEEN THE PC AND THE PORTANET IS LOST AFTER FEW SECONDS iecececececucecucecucecetetetesetenetetenenetenenenans 34 6 5 UNICAST COMMUNICATION PROBLEMS ccececececececececececececetesesenenenetetenenenenans 35 6 6 WHEN CONNECTING TWO PORTANETS IN UNICAST THERE IS NO AUDIO AT ONE END 35 6 7 NO AUDIO WHEN CONNECTING TWO PORTANETS USING MULTICAST 35 6 8 INTERRUPTIONS TO AUDIO WHEN CONNECTING TWO CODECS 36 Prodys Support Department Prodys IP FAQ 2 Prodys e Prodys Support Department Application Note 3 INTRODUCTION This chapter is aimed at providing a fundamental understanding of Prodys IP Codecs operation and at describing some solutions to common problems when using Prodys IP Codecs for the first time 1 ETHERNET CONNECTION Prodys IP Codecs come equipped with an 10 100BaseTx standard Ethernet port with auto negotiation in the starting stage When connecting to another Ethernet device Prodys IP Codecs can detect automatically the network speed 10 or 100Mbps Next to the socket there are three LEDs that indicate different states for the connection and these are very useful in problem solving situations LAN LED s Receive Status
19. Through Cable RJ45 Plug Pin 1 an Cable Wiring Pomot O ome net 1 2 CONNECTING TO A PC In some cases such as when you configure the equipment it is possible that you will want to connect the unit directly to a PC In this case the PC must have a free Ethernet port to connect to and you must use a cross over Ethernet cable Again any good IT shop will stock these cables This time the wiring is as follows Cross Over Cable RJ45 Plug Pin 1 u Cable Wiring 2 IP PROTOCOLS ADDRESSES PORTS AND ROUTER CONFIGURATION The operation of the Prodys IP Codecs for audio streaming offers two operational modes UNICAST and MULTICAST From version 5 2 1 onwards Multi Unicast is also available With Multi Unicast point to multi point connections are available The same compressed audio one encoder can be sent to up to 10 different locations at the same time by means of Unicast connections This solution overcomes the lack of Multicast support by some networks 2 1 UNICAST COMMUNICATIONS The term UNICAST is used in the networking world to refer to the connection to a single destination Applied to the Prodys IP Codecs this is when a point to point connection is created between two units uni or bidirectionally Prodys Support Department Prodys IP FAQ 4 Prodys Support Department Application Note 5 2 1 1 ESTABLISHING A UNICAST CONNECTION The procedure for establishing a connection is ver
20. after a few seconds To avoid this situation the user must enable the ICMP traffic in the firewall x AN Connection with device lost 2 When the connection between the Codec and the computer is made through a router that is the connection is made over a WAN or the Internet the user must configure the router at the Codec side to let pass through traffic coming from ports TCP 50011 and TPC 80 these are the default ones so these ports might be different depending on th configuration and also the ICMP traffic versions prior to 4 8 0 at both sides Traffic from those ports should be also forwarded to the IP address of the Codec Router s ICMP enabled TCP 50011 y 80 to 192 168 1 2 EP ICMP enabled 2 P s 10 0 0 2 10 0 0 1 80 50 50 50 80 50 So 51 192 168 1 1 192 168 1 2 Support Department IP FAQ 34 Prodys XJ Prodys Support Department Application Note 35 6 5 UNICAST COMMUNICATION PROBLEMS To establish a unicast communication between two Prodys IP Codecs the following ports are used by default TCP 50019 to control the communication and UDP 50021 to send receive audio data The typical problem is when this communication is being established across different networks through two routers one at either end In this case these ports or the new ones when the base port is changed on the routers have to be opened and forwarded to the Codec IP address The ICMP traffic has to be also enabled in the ro
21. at is calls can be set up first from the transmitter and then from each of the receivers or the other way round B Multicast considerations Prodys Support Department Prodys IP FAQ 5 Prodys e Prodys Support Department Application Note 6 90 9 Internet Protocol IP multicast is a bandwidth conserving technology that reduces traffic by simultaneously delivering a single stream of information to thousands of corporate recipients and homes Multicast is based on the concept of a group An arbitrary group of receivers expresses an interest in receiving a particular data stream This group does not have any physical or geographical boundaries the hosts can be located anywhere on the Internet Hosts that are interested in receiving data flowing to a particular group must join the group using IGMP All this is done automatically by ProntoNet when establising a connection Multicast traffic is rejected when going through the Internet since most IP servers on the Internet do not currently support the multicasting part of the protocol except when using VPNs because VPN s encapsulates IP packets as unicast frames so routers simply see an ordinary packet All IP multicast group addresses will fall in the range of 224 0 0 0 to 239 255 255 255 but some of them are reserved that s why the range of addresses from 224 0 1 0 through 238 255 255 255 are called globally scoped addresses There should only ever be one transmitter connect
22. d to refer to the whole standard This effort will allow to setup in a friendly way audio streaming communications between several vendors of equipment The deployment of SIP Protocol Servers among the network will support calling remote parties just by invoking their network name regardless of the actual public or private IP addresses The physical location often related to fixed IP addresses or subnets is not further meaningful In this sense specially portable audio codecs will profit with an easy call procedure Neither is required to agree ahead on the audio compression type and data stream rate because the SIP Protocol manages by itself to negotiate the convenient communication details with the remote party For Prodys former customers performing a call using SIP is much the same as using Prodys proprietary protocols given that the SIP configuration is set 2 6 1 Enabling SIP protocol for Prodys IP codecs To enable SIP calls the codec administrator has to Provide an IP network Enable the IP network on the root NET menu Enable the Unicast Multicast on the root NET menu Enable the SIP option at the Configuration Streaming Protocol menu IE Configuration Ah Line 1 E Protocol Confi 1 an Eva Streaming Protocol 000 Proprietary der Proprietary we cu Sys js D Timedate CCS MetStar amp udioStar 3 Password X Aux Data SIP g Alarms SAP According
23. ed to a MULTICAST group or else audio reception errors will occur For transmitting MULTICAST audio the Prodys proprietary protocol Prodys eXtended Real Time Protocol PX RTP will be used The ProntoNet transmitter cannot be in automatic encoding mode To guarantee a constant delay all the units must synchronise their clocks Each receiver will activate a clock sync algorithm that adjusts its PLL Phase Lock Loop 2 4 MULTI UNICAST COMMUNICATIONS To select this feature open the new NET menu by clicking on the NET button Device Net Avaliable nets ISDN IP Options LInicast Multicast 9 IP Qx1 C2 MultiLlnicast Cancel Prodys Support Department Prodys IP FAQ 6 Prodys Support Department Application Note 7 The main window will show all the available connections 01 06 2007 09 29 15 Vumeters Lucoue MPEC 2 4Kbps 45Khz Input Output Tx 1 Disconnected 0 Tx 2 Disconnected 0 Tx 3 Disconnected 0 Tx 4 Disconnected 0 Tx 5 Disconnected 0 Ke Disconnected 0 Menu Dial e Disconnected 0 e Menu 12v Main 12 06 Unlocked Disconnected 0 12v Backup ofi AAA x 10 Disconnected 0 Temp C F 49 22 120 59 Fan RPM Off GPI 0000000 Decoder Rx Disconnected 0 Depending on the compression mode up to 10 Tx connections will be available e MPEG L2 L3 y AAC Up to 10 Tx 1 Rx e PCM G711 G7
24. ernet Prodys Support Department Prodys IP FAQ 33 prodys e Prodys Support Department Application Note 34 Explorer podr a haber problemas con el acceso a la p gina web dado que la p gina que el navegador nos muestra podr a ser la almacenada de la versi n anterior que no puede conectar con el equipo y dar a un error de versi n incompatible Para evitar esto se puede pulsar la tecla F5 que intenta refrescar la p gina sin pasar por cache mostrando as la correcta que intentar a la instalaci n del nuevo OCX Otras veces esto no es suficiente siendo necesario entrar en Opciones de Internet en el men del Internet Explorer pulsar sobre General y una vez dentro de este men seleccionar Borrar ficheros temporales 6 3 MICROSOFT WINDOWS VISTA BLOCKS OCX INSTALLATION WHEN TRYING TO ACCESS THE CODEC WEB PAGE Should the user experience a problem when downloading the OCX file when first accessing the web page of the unit please disable UAC User Access Control on Windows Vista Once the OCX file has been installed in the computer UAC can be enabled again 6 4 WHEN ACCESSING THE PORTANET WEB PAGE THE CONNECTION BETWEEN THE PC AND THE PORTANET IS LOST AFTER A FEW SECONDS 1 Versions prior to 4 8 0 In some operating systems like Windows XP SP2 there is a firewall enabled by default which disables the ICMP traffic to and from the PC In this case the PC cannot maintain the connection with the web page and it is lost
25. fault factory settings for the IP address and netmask are 192 168 100 100 and 255 255 255 0 respectively The user must change the IP settings in the computer or in the Codec to match the Same network To change the IP address of the Codec the user can use the control keypad or the web page In the menu it is set by selecting CONF PORTS LAN The IP settings can be entered manually or they can be obtained automatically when the unit starts from a DHCP server Once the IP setting on the PC and the Codec are configured properly you can check that IP connectivity exists by typing the following command at the command prompt of the operating system C gt ping 192 168 100 100 JH This tool will inform the user whether there is IP connectivity between the PC and the Codec or not 5 The PC and the Codec are not connected to the same LAN but connected through a router This connection could be for example a connection through the Internet with DSL routers In this case to access the codec web page remotely from the PC it is necessary to enable the ICMP traffic at both sides only with versions prior to 4 8 0 In addition the corresponding router should open the following TCP ports 50011 and 80 these are the default ones so these ports might be different depending on th configuration and forward this traffic to the Codec IP address Prodys Support Department Prodys IP FAQ 31 prodys Prodys Support Department Application Note 32 Route
26. h redirects the call to the destination if it is registered Please see the example below Ej DIAL Le Codec 1 Audio Mode MPEG4 AAC HE 128Kbps 24Khz ST Change Tx 83 108 5 27 Call Type Unicast Bidirectional Phone Book Discover Entry Mame Audio Mode m In this example this call will be headed to the Sip server at IP 83 108 5 27 and to the user registered as Ted on that server NOTE Please note that some SIP phones do not require the user to enter the IP Domain name of the SIP Server when the unit has been configured to be registered on that SIP server Only the name of the called part has to be entered to establish the connection This functionality is expected to be included in next firmware versions There are several Public SIP servers available Please bear in mind that some of these servers act as Proxy SIP Servers in the sense that not only the signalling but also the audio data goes thought them This implies a longer audio delay in the communication as well as a restriction on the supported compression modes for the audio connection 2 6 4 Port configuration on the router for SIP Please refer to Chapter 2 10 Router configuration 2 7 OTHER NOT AUDIO NETWORK PROTOCOLS The Prodys IP Codecs also support many other network protocols which are listed next DHCP IP address auto configuration DNS Domain Name Server IGMP This protocol deals with
27. he information is displayed in different graphs synchronized with each other so that the user can move through all the data very easily Data from each connection is stored independently so that it is possible to access data from connections other than the current one In addition it is possible to delete export or import data from any previous call Current Call 07 05 07 17 06 13 v Call 1 070507 17 02 36 07 05 07 Prodys Support Department Prodys FAQ 30 Prodys Support Department Application Note 31 This chapter is aimed at providing some solutions to common problems when using Prodys IP Codecs for the first time 6 1 WEB PAGE CANNOT BE ACCESSED 1 The codec and the PC have the right IP settings If you do not know the codec IP address make a factory default reset by restarting the unit with Microswitch 7 pulled down Do not forget to pull up the switch again after reset 2 You are not using the right cable crossover CAT 5 cable when connected directly without using a switch or hub 3 The cable or the connector are faulty There are some LEDs at the rear panel to check the Ethernet link Receive Status On Receiving data Link Status On Connected Speed Status On 100M Off 10M 4 The IP address of the Codec and the PC from which we are trying to access the web page are not in the same subnet even although they are connected to the same LAN The de
28. ld be configured in its phone book Configuration INTERFACES Entry Name Line 1 Phone IP Line 2 Phone Line 1 amp Master IP 132 1568 51 2000 APT 4 El x 400 o CO J CD CT e La pa TIMEDATE PASSWORD dE AUX DATA VERSION ALARMS amp BACKUP amp h BOOK cel SCHEDULER sj ADVANCED SS STREAMING 2 10 ROUTER CONFIGURATION B As we mentioned before both Prodys Protocols and EBU TECH 3326 Standard protocols use several ports in order to achieve IP connections between units B If the user tries to connect two units through one or several routers they Should be configured in order to forward these ports packets to the recipient units this is usually called Network Address Translation NAT or NAPT Prodys Support Department Prodys IP FAQ 16 prodys e Prodys Support Department Application Note 17 B In addition routers firewalls should let ICMP packets pass through from WAN interface to LAN interface in order to let the unit ping packets to reach the recipient codec This is only necessary till version 4 8 0 in which this protocol was removed B Bear in mind that the Prodys IP Codec subnet should be the same as the router subnet and its gateway should be the private LAN IP address of the router which the Codec is connected to B The user should bear in mind that other protocols such us SNTP or SNMP use UDP ports for their communications and that should be taken int
29. liary data Available from version 4 8 0 on e Prodys U bit Protocol P UbP This protocol is based on UDP and used for transmitting receiving the User Bit from the AES EBU frame Available from version 4 8 0 on From version 5 2 1 onwards a new proprietary set of protocols version 2 is available This new set of protocols version 2 is not compatible backward and it introduces some new fields in some of the protocols previously listed so that it is possible to measure lost and disordered packets in real time and during the audio connection Configuration Sy Interfaces Protocol Configuration E Bs LAM PUR HS A Ports Streaming Protocol gy SNMP BS Ethernet Port Proprietary ISDN Proprietary v2 h Line 1 2 Line 2 CO CCS NetStarAudioS tar R5232 000 GPIO e Audio E m Ss Timedate Password AE Aus Data Version g Alarms Bs Backup License dh Book E Scheduler ay Advanced cO Streaming Bs Protocol Restore Default Prodys Support Department Prodys IP FAQ 8 Prodys e Prodys Support Department Application Note 9 2 6 SIP EBU TECH 3326 STANDARD FOR AUDIO OVER IP The European Broadcast Union EBU is promoting the interoperability of audio codecs for any manufacturer For this purpose the use and the application of a subset of the Internet Protocols has been proposed SIP SAP RTP and SDP are the main protocols although SIP is commonly use
30. maller the required bandwidth more efficient use of IP packets and vice versa See chapter Streaming Tx Prodys Support Department Prodys IP FAQ 36 prodys
31. n the corresponding router firewall when required The following things should be taken into consideration when changing the base port 1 To access the web page of the unit the new port has to be indicated in the http address bar of the web browser after the IP address separated by a colon http IP Port Example 192 168 0 10 8080 2 To log into the unit click on the advance features button of the login window 2 4 Password and specify the base port which we want to connect to Password O Times Prodys Support Department Prodys IP FAQ 15 Prodys Support Department Application Note 16 3 When making a call in case that the receiver has changed the default base port the user should indicate the address and the port to call to lt IP gt lt Port gt Dial 192 168 51 200 100 Unicast Bidirectional C3 Unicast Unidirectional Tx Unicast Unidirectional Ax Multicast Ts Multicast Ry Audio Mode ENH 16Bits 256K bps 15 5T 4 When establishing a bidirectional call with Prodys IP codecs two connections are made automatically one for each direction For the receiver to call properly to the caller it should have an entry on its phone book with the IP address of the caller and the base port of the caller Example if the caller has the IP address 10 1 5 0 and its base port is 40011 in the receiver the following entry shou
32. o account when configuring the routers firewalls when required That is SNMP 161 UDP port should be enabled forwarded in the corresponding router firewall when trying to control the units via SNMP from outside our network SNTP 123 UDP port should be configured only when one the units acts as a time server and it is going to receive time requests from outside our network B On the other hand when establishing a connection between Codecs the IP addresses to call will be the public WAN address of the corresponding routers B Also user has to keep in mind that some new Operating Systems like XP Home SP2 comes fitted with a firewall enabled by default This firewall might be configured to disable incoming traffic thus not allowing connection to the web page 3 EXAMPLES OF PORT SETUP FOR CALLING OVER IP This chapter is aimed at providing a fundamental understanding of TCP UDP port configuration for those scenarios where a router firewall with NAT Network Address Translation requires the configuration open forwarding of the incoming traffic based on the TCP UDP port number in the router Prodys is ahead of the development of the current standard from the EBU group for audio distribution over IP although we also support our own proprietary protocols for those cases where they better suit customer needs Therefore this chapter comprises both configuration for Proprietary Protocols and for SIP SAP SDP RTP protocols compl
33. on Prodys IP Codecs comes fitted with a Test Tool embedded in the web page No additional software is required With this tool the user can measure the most important parameters of an IP connection Download and upload bandwidth delay Jitter lost packets and packet disorder 5 1 TEST STREAMING TOOL Access this tool by pressing the SYS button on the web interface and select STREAMING Test Then type in the IP address of the remote end unit and click on Start Test By clicking on the different tabs the user can get the information related to upload and download bandwidth delay and quality of service To stop the test click on the Stop Test button IP Stats Hemote Testing 261 Kbps Download Upload Delay Quality of Service Last Value 47056 kbps Mean Value 46840 Kbps Min Value 43240 kbps TERES 48480 kbps Download Rate Kbps This information help you to decide which compression mode to use and adjust the streaming parameters based on a truly accurate knowledge of Prodys Support Department Prodys IP FAQ 26 Prodys Support Department Application Note 27 the quality of the connection thus obtaining the best quality in the real time audio transmission Once selected the compression mode with the measured jitter and bandwidth the user is ready to adjust
34. ort Codec West 80 80 Codec West 5004 5004 Codec West 5060 5060 Codec West 50011 50039 10 00 2 10 00 2 10 00 2 10 00 2 80 5004 5060 0 Please make sure that for both codecs the default port assignment is provided Take into account that this router configuration only applies when the default ports for IP communications are used In case you want to make sure that the default ports will be used for the connections the user can restore the default port configuration from the port configuration window on the control web as shown in the picture below by clicking on the Restore Default button under the Web Server Port entry box Configuration EA Interfaces s Ports Confi t le LAN ie SNMP BE Ethernet Port ISDN SA Line 1 Base Port Web Server Port Timedate Password Aux Data Version Alarms dh Book 18 Scheduler a Advanced 2 23 Streaming Map port 0 means for most of the router configuration that the external port number matches the port number for the local area network Given an example an incoming request from the WAN interface to the port number 50021 will be forwarded to the codec on the same port number 50021 The other button labelled as Restore Default at the bottom of the screen will restore the factory default configuration for all settings not only ports Prodys Support Department Prodys IP FAQ 19 Prodys Support Department
35. port Department Application Note 12 LA Configuration Streaming Protocol SIF SIP Port Port 5004 3 Password Register in server diuina Server IP 983 108 5 2 Timeout 3600 sam Usermame Ted Server User apollo A rss Server Password 9999955 0 3 Streaming Na Protocol 2 6 3 Calling with SIP Once all parameters has been properly configured it is possible to establish an IP connection with SIP in two different ways e Peer to peer e Through SIP Server 2 6 3 1 Peer to peer SIP calls When making a call peer to peer with SIP protocol just proceed as usual entering the corresponding IP address or domain name of the receiver peer in the dial window select the type of call unidirectional or bidirectional and click on ok On the front panel just press the CALL1 or CALL2 keys select the type of call and enter the IP address of the remote end 2 6 3 2 Calls through SIP Proxy Server Once registered with the Sip Server the codec can be called by username asip server domain or address Using a SIP server avoids to share continuously with communication mates IP details like IP address Prodys Support Department Prodys IP FAQ 12 Prodys e Prodys Support Department Application Note 13 Please take into account that the address to dial should contain the SIP server address preceded by the registered name of the called party It is the SIP server whic
36. r configuration ICMP enabled TCP 50011 y 80 to 192 168 1 2 ICMP enabled IP s 10 0 0 2 10 0 0 1 80 50 50 50 80 50 50 51 192 168 1 1 192 168 1 2 6 2 MICROSOFT INTERNET EXPLORER BLOCKS OCX INSTALLATION WHEN TRYING TO ACCESS THE CODEC WEB PAGE The first time the user accesses the codec web page an OCX file has to be downloaded and installed in the computer This is done automatically unless the web browser disables it So depending on the configuration of the web browser the following message can appear when first accessing the web page Internet Explorer 5ecurity Warning Windows has blocked this software because it can t verify the publisher Mame SClusterOutputBosx cab Publisher Unknown Publisher To help protect your computer Windows will block software when iE cannot verify Ehe publisher See how this helps protect your computer Go to Internet Options in IExplorer click on Security tab and set prompt when downloading ActiveX signed and unsigned controls at Local and Internet zones Prodys Support Department Prodys IP FAQ 32 Prodys e Prodys Support Department Application Note 33 Internet Options General security Privacy Content Connections Programs Advanced Select a Web content zone to specify its security settings uo Internet Basis Trusted sites Restricted gites
37. rts along the codec array NOTE As per the current firmware version 5 5 0 it is mandatory to enable the Public IP Address option in the SIP configuration when making calls through routers gateways with NAT and to provide the public IP address of the router s WAN interface manually Here follows a table summarizing the different port configurations depending on the units for both Prodys Proprietary Protocols and SIP RTP standard protocols Entry for West Web Server Port Base Port SIP Port RTP Port Codec WA 50001 50010 5060 5004 Codec WB 50061 50070 5160 5104 Codec WC 50121 50130 5260 5204 Codec WD 50181 50190 5360 5304 figure 9 In order to complete the configuration and only when establishing IP connections with Prodys Proprietary protocols the codecs on the receiver site in this example the East site must register the public external addresses of the codecs at the West site This is done with a BOOK entry at each codec Network Address Translation The router translates private IP address into public addresses 8 Please note calling via the SIP protocol does not require keeping a registration of the call initiator inside the receiving codec BOOK Prodys Support Department Prodys IP FAQ 22 Prodys e Prodys Support Department Application Note 23 Figure 9 shows an example of one BOOK entry for destination Codec WA at the mate codec of the East site 4 Configuration g Interfaces EA LAN 3
38. ss This is achieved in two steps e By putting place a Network Address Port Translation mechanism inside the gateway Please refer to the user manual of your router usually you have to look for NAT PAT or Port Forwarding description of your network device Please find below an example of router configuration for the router labelled as WEST Prodys Support Department Prodys IP FAQ 20 Prodys Support Department Application Note 21 Entry for West First port Last port Local address Map port Codec WA 50001 50060 LL YY XX AA 0 Codec WB 50061 50120 LL YY XX BB 0 3 Codec WC 50121 50180 LL YY XX CC 0 Codec WD 50181 50240 LL YY XX DD 0 Codec WA 5004 5004 LL YY XX AA 5004 Codec WA 5060 5060 LL YY XX AA 5060 Codec WB 5104 5104 LL YY XX BB 5104 Codec WB 5160 5160 LL YY XX BB 5160 Codec WC 5204 5204 LL YY XX CC 5204 Codec WC 5260 5260 LL YY XX CC 5260 Codec WD 5304 5304 LL YY XX DD 5304 Codec WD 5360 5360 LL YY XX DD 5360 figure 6 e The following step is to define a range of ports to be used by the unit for its IP communications which matches the port forwarding range defined for NAT NAPT on the router gateway This can be done by the user from the Ports Configuration window from the web page or via the menu screen on the front panel 2 Configuration E is Interfaces Ports Config LAN e Ports Base Port em SNMP s 9 Ethernet Port al e ISDN Um M Line 1 Web Server Port
39. starting the unit with Microswitch 7 pulled down Do not forget to pull up the switch again after reset b You are using the right cable crossover CAT 5 cable when connected directly without using a switch or hub 4 1 WHAT ARE S CLUSTER OCX FILES OCX stands for OLE Control Extension an independent program module that can be accessed by other programs like Microsoft Internet Explorer in a Windows environment OCX controls end with a ocx extension S Cluster OCX files are installed on your computer when you access the IP Codec web page They are installed on the following path It depends on the Windows version and on the type of IP Codec C WINDOWS WINNT Prodys Unit name version Unit name ocx For example to access ProntoNet version 4 5 0 the PC will store the following ocx file under Windows XP SP2 C WINDOWS Prodys ProntoNetv4 5 1 ProntoNet ocx These modules OCX files are used by Microsoft Internet Explorer to provide the user with graphical user interface to control Prodys IP Codes These modules OCX files use another files like graphics which are stored in some folders placed behind the root one such us C WINDOWS WINNT Prodys ProntoNet for example Prodys Support Department Prodys IP FAQ 25 Pod Prodys Support Department Application Note 26 5 MEASURING THE IP LINK BEFORE CALLING Before making an IP connection be it unicast or multicast the user should first check the quality of the IP connecti
40. t constant it is necessary to adjust the buffer size in order to guaranty not audio drops even when the delay reaches the maximum value B The unit of this buffer is miliseconds and the range is 0 500 The delay grows as many as the number of miliseconds the buffer has been set to B The jitter value can me measured by the streaming tool commented before B Rule Max User Line Delay TBP gt Jitter value Configuration RX Configuration User Line Delay A He AUDIO E TIMEDATE z PASSWORD AUX DATA VERSION BOOK mj ADVANCED 43 STREAMING 8 Tx a AX E Test Cancel Prodys Support Department Prodys IP FAQ 28 prodys e Prodys Support Department Application Note 29 5 4 REAL TIME NETWORK ANALYZER From version 5 2 1 onwards it is possible to monitor in real time and during the audio connection some performance parameters in the network such as jitter lost and disordered packets This information will be saved separately for each connection in RAM memory Up to 24 hours of data can be stored Once the connection is established the user can access the real time network analyzer by clicking on the buffer occupation graph in order to get information related to Realtime Network Analyzer Rx occupation With average maximum and minimum usage Very low percentage of buffer occupation will cause audio interruptions and drop outs Jitter High jitter values will ma
41. tch with low buffer occupation Lost and disordered packets To be able to get all this information Proprietary Protocol V2 should be configured as audio protocol This protocol is not compatible with the previous one version 1 Proprietary protocol version 1 will allow the user to get information about jitter and buffer usage but will not allow the user to obtain information about lost and disordered packets Prodys Support Department Prodys IP FAQ 29 Prodys e Prodys Support Department Application Note 30 Streaming and Network Analyzer E RxBufFer 100 0 7 Max 100 0 Reference Value 50 0 ato ns Date 07 05 07 EE s Time 17 04 46 Min 0 0 Mean Last Value 89 9 17 04 19 17 04 30 14 04 42 17 04 53 17 0504 17 05 16 pares Jitter 1 02 Jitter i Max Value 0 9 Date 07 05 07 Exe 2 0 51 Time 17 04 46 Min Value 0 09 Last Value 0 16 Mean 0 00 1 419 12 04 30 14 04 42 17 04 53 17 0504 17 05 16 Last Value 0 0 Packets 100 m Lost E Total n l Date 07 05 07 50 Time 17 04 46 Last Value 0 Disordered IE Total 0 17 04 19 17 04 30 1704442 17 04 53 170504 17 05 16 Last Value 0 T aa Close All t
42. to the standard for the EBU group x Book Tal Scheduler P Advanced ES Streaming 111 Es IP Export Import Restor Prodys Support Department Prodys IP FAQ 9 Prodys Support Department Application Note 10 2 6 2 Configuring SIP Any SIP call actor requires the setting of two IP ports one for the signalling messages and another one for the actual audio data stream By default the signalling port 5060 and audio port 5004 are provided complying to the corresponding standards for SIP and RTP RFC s 3261 and 3550 The communication mate must agree with both port numbers to make a call possible P Configuration Streaming Frotocol SIF SIF Part 5060 Audia Port 5004 8 Password El Public IP Address E Sus Data cg Version Register in server 3600 m 4 License 4 Book Scheduler a Advanced 0 3 Streaming E MS Protocol 85 CCS 2 6 2 1 Public IP Address If the codec has to manage SIP calls thru a router firewall with NAT Network Address Translation other parameter must be set e The Public IP Address of the router s WAN interface must be configured e It is recommended to purchase static IP addresses access from Internet Service Provider If the codec is not going to connect through a router firewall which translates from private to public IP address NAT it is not necessary to use this field and
43. uters Router s TCP 50019 amp UDP 50021 to TCP 50019 amp UDP 50021 to configuration 10 0 0 2 ICMP enabled 192 168 1 2 ICMP enabled A d IP s 10 0 0 2 10 0 0 1 80 50 50 50 80 50 50 51 192 168 1 1 192 168 1 2 Note From version 5 2 0 onwards it is possible to obtain network related parameters such as jitter lost or disordered packets in real time during the audio connection To be able to get all this information Proprietaty Protocol V2 should be configured as audio protocol This protocol is not compatible with the previous one version 1 so it could lead to confusion given that it would not be possible to establish a connection between ProntoNet when the protocol version does not match 6 6 WHEN CONNECTING TWO PORTANETS IN UNICAST THERE IS NO AUDIO AT ONE END To establish a unicast communication between two Prodys IP Codecs the following ports are used by default TCP 50019 to control the communication and UDP 50021 to send receive audio data If the communication is made through a router firewall and the control port is opened but the data port is closed it would be possible to establish the connection but not to receive the audio data In a bidirectional communication we could even receive audio only at one end if only one of the two routers is properly configured 6 7 AUDIO WHEN CONNECTING TWO PORTANETS USING MULTICAST To establish a multicast communication between two Prodys IP Codecs the UDP 50025 port
44. y similar to that of making an ISDN call but entering an IP address of the unit we wish to connect to For further information about IP addressing please read the IP Addressing Overview ppt file available in the Prodys site download section The audio data connection can be bi directional as in an ISDN codec in which case we need two connections one in each direction For this the unit that receives and accepts the call will automatically call back to the originating unit and establish a reverse connection Callina to 192 168 0 2 gt Unit A SE Unit B 192 168 0 1 Audio P RTP 192 268859 2 2 MULTICAST COMMUNICATIONS The term MULTICAST is used in the networking world to refer to the connection to multiple destinations Applied to Prodys IP Codecs this is when a point to multipoint connection is created between several units unidirectionally For further information about multicast please read the Multicast Overview ppt file available in the Prodys site download section 2 3 ESTABLISHING A MULTICAST COMMUNICATION FROM THE PRONTONET With MULTICAST the calls must be made from both ends Both the sender of the data and all the receivers of the data must call to establish a connection to the multicast group The multicast operation can be shown in the following diagram at 7000 1 gt ProntoNet Rx ProntoNet Tx ProntoN Rx ProntoNet Rx This can be done in any order th
45. ying to EBU Tech 3326 standard From now on we will use only SIP to refer to all protocols included in this standard 3 1 DIFFERENT NETWORK TOPOLOGIES AND PORT CONFIGURATION This chapter describes how to configure and operate with Prodys IP codecs when making IP connections for different network topologies The following picture depicts a complex network where star topology and array configuration have been merged SIP is the commercial name commonly adopted to refer to the EBU standard for audio over IP This standard also comprises other protocols such us SAP SDP and RTP Prodys Support Department Prodys IP FAQ 17 prodys Prodys Support Department Application Note 18 e If only one single codec behind a router gateway is to connect you might refer to the One to One topology chapter below e If multiple codecs are deployed sharing the same gateway e g Nereus or several ProntoNets on one site the configuration description in Array of codecs in a back to back configuration section below must be taken into account e The third scenario would be that where only one codec A behind a router is to communicate with other codecs B C at the remote site sharing a common router In this case the configuration detailed on One to One topology chapter would be applied to A whilst B and C would require the configuration defined in Array of codecs in a back to back configuration To E teil m NEREUS One E
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