Spracht cp-2010 User's Manual
Contents
1. Line e Plug the other end of that RJ 11 cable into a telephone jack Connect Conference Phone power adapter to Analog Interface In North America use 120 VAC power adapter PA 101 supplied with Conference Phone in Europe use 230 VAC power adapter PA 201 available in EK 101 European adapter kit e Plug DC plug on power adapter cord into the Analog Interface connector labeled DC12V e Plug power adapter into a nearby electrical outlet do not exceed voltage rating of power adapter Note At this point the Conference Phone will emit a musical jingle this self test allows it to automatically calibrate its performance for the acoustic environment Analog Telephone System Interface Analog Interface Phone jack Analog Systems Wall Mounting of Analog Interface Optional e Install the two mounting screws supplied with the Analog Interface in the For wall mounting wall Leave approximately 3 16 in 0 5 cm between screw head and wall e Place the Analog Interface over the mounting screws and slide it down to fix it in position Selection of Tone or Pulse Dialing The user may select either pulse or tone dialing DTMF dual tone multi frequency To change the dialing mode e Slide the switch located on the underside of the Conference Phone to match the dialing mode of the telephone network being used Factory setting is Tone Connection of Standard Phone for Priva2. Voice Center Conference Phone CP 2010 model series User s Manual Table of Contents Voice Center User s Manual Introduction and Quick Start Guide Package Contents a 2 Safety Precautions LL 2 Analog or Digital Telephone System o J gt Setup TIPS o 3 p rp O Analog Telephone System 0 Setup with Analog Telephone System 4 Selection of Tone or Pulse Dialing 20 0000 008 2 lt Connection of Standard Phone for Private Conversations Optional Keypad Functions with Analog Telephone System Operation with Analog Telephone System oaoa Digital Telephone System Setup with Digital Telephone System i Keypad Functions with Digital Telephone System Operation with Digital Telephone System 0000 General Setup Topics Tips for Obtaining Optimal Acoustic Performance selecting Number of Built in Microphones to be Active Installation of External Microphones 0 0000 eee 13 _ Connection of an External Tape Recorder 00 13 Technical Reference DOeECIICALIONS uu stra PE 4 14 0 Spracht Limited Warranty Policy 0000000 ee eee 19 5 FGG COMPISNCS Lia a ee Des 16 Introduction Thank you for choosing the Voice Center Conference Phone a high performance audio conferencing system lts features include e Full duplex communicat
3. FLASH key to place present call on hold and obtain a dial tone 2 Dial the second call 3 Press the FLASH key once more to begin the three way call Using a standard phone connected to the Analog Interface A standard analog telephone may be connected to the Voice Center Analog Interface to allow private conversations using a handset see setup instructions on page 9 The following instructions explain how to transfer calls between the Conference Phone and an external telephone connected to the Analog Interface e To transfer a call from the Conference Phone to the external analog telephone 1 Pick up the telephone handset while the Conference Phone is on 2 Turn off the Conference Phone by pressing its ON OFF key e To transfer a call from the external analog telephone to the Conference Phone 1 While the private call is in progress turn on the Conference Phone by pressing its ON OFF key 2 Hang up the handset of the external telephone Digital Telephone System OO LO LL iL nr ILL DLL Setup of Conference Phone with Digital Phone System Note The DT 102 Digital Telephone System Interface is required for use of the Voice Center P Conference Phone with a digital phone system Follow the steps below to set up the system Throughout the instructions the Voice Center Conference Phone is referred to as Conference Phone and the DI 102 Digital Telephone System Interface is referred to as Digital Interface 1 Connect Di
4. With setting 1 only the microphone by the keypad is active With setting 2 the m ll be active one two or all three The factory setting is three but in icrophones The microphone selection switch is located on the underside the Conference Phone and is labeled MIC SW icrophones in positions 1 by the keypad and 2 are active 12 General Installation of External Microphones Optional The Voice Center Conference Phone has 3 built in microphones for complete 360 coverage in areas up to 10 x 15 ft 3 x 4 5 m a a The Voice Center Conference Phone has RJ 22 input jacks for two external microphones to extend coverage in larger areas and to allow for irregular layouts Voice Center External Microphones Spracht catalog no EM 101 are sold separately from the Voice Center Conference Phone An EM 101 External Microphone comes with a 70 inch 1 8 m cable with RJ 22 connector same connector as used for telephone handsets To install an external microphone 1 Plug the RJ 22 microphone connector into one of the two microphone connectors on the underside of the Conference Phone the micro phone connectors are labeled EXTERNAL MIC 2 Place the external microphone at least 18 inches 0 5 m from the Conference Phone and if present another external microphone The diagrams below show some common arrangements for external microphones with the Conference Phone e External microphone A Confere
5. digital telephone systems the DT 102 Digital Telephone System Interface sold separately is also required Contents of the DT 102 Digital Interface package 4 position switch eS E Digital telephone RJ 22 Telephone handset system interface cable 20 inch 0 5 m 2 Safety Precautions The Voice Center Conference Phone is an electrical product As with any electrical product observe reasonable precautions to avoid risk of fire or electrical shock Specifically e Do not use this product near water such as near a sink or bath tub or in a wet area such as in a wet basement Caution This product is for indoor use only e Do not use a telephone during an electrical storm there is some risk of electrical shock from lightning e Do not use this conference phone near a gas leak or vapors that could be ignited e Follow the instructions in this User s Manual Quick Start Guide Analog or Digital Telephone System Caution if the Voice Center is connected to a digital telephone system using the Analog Telephone System Interface it will not operate correctly and may cause damage to the AT 101 Analog Interface and cause it to overheat It is therefore important to use the correct interface for your telephone system How do you determine if your telephone system is analog or digital The best way is to consult the phone system s documentation or in a corporate environment to call your companys teleservices departmen
6. not need to press ON OFF before REDIAL FLASH This key provides access to special telephone service features if you have enrolled in these services from your local telephone company e Call waiting pressing FLASH key switches between calls requires subscription to local tele phone companys Call waiting service e Three way calling pressing FLASH key places present call on hold and provides a dial tone after dialing another call pressing the FLASH key once more begins the three way call if you have subscribed to local telephone company s three way call service Standard 12 button Telephone Keypad 10 digits plus and Use 12 keys to dial telephone numbers V reduce volume Pressing Y key when phone is ringing or no call is in progress decreases the ringer volume Pressing Y key while a call is in progress decreases the speaker volume A increase volume Pressing A key when phone is ringing or no call is in progress increases the ringer volume Pressing A key while a call is in progress increases the speaker volume MUTE Pressing the MUTE key during a call turns off all microphones Red LEDs above the MUTE key and above microphones on other two legs of the Conference Phone illuminate to indicate conference participants cannot be heard at the other end of the line Pressing the MUTE key again reactivates the microphones and red LEDs extinguish Analog Systems Conference Phone Operation with Analog Phon
7. ace Optional e Install the two mounting screws supplied with the Digital Interface in the wall Leave approximately 3 16 in 0 5 cm between screw head and wall e Place the Digital Interface over the mounting screws and slide it down to fix it in position Ig AAA AA For wall mounting Digital Systems Keypad Functions with Digital Phone System 10 E FLASH ii NE ax 7 77 REDIAL Haf MUTE volume an A Increase e ES volume Il ON OFF Pressing the ON OFF key turns the Conference Phone on to connect a call or turns it off to ter minate the Conference Phone conversation The green LED just above the ON OFF key illumi nates when the Conference Phone is on With a digital telephone system Conference Phone calls go through the digital telephone con nected to the DT 102 Digital Interface and that digital telephone s handset must be off hook for the duration of the call When the Conference Phone is turned on it disables the microphone in the digital telephone handset so conversation is conducted only through the Conference Phone Standard 12 button Telephone Keypad REDIAL FLASH When using the Conference Phone with a digital telephone system you must dial calls on the digital telephone connected to the DI 102 Digital Interface The standard 12 button telephone keypad REDIAL and FLASH keys do not function with most digital telephone systems Vv reduce volume Pressing Y key when
8. al 12 VDC for power adapter RJ 45 cable to conference phone Analog RJ 11 for telephone line RJ 11 for external telephone neither cable nor telephone supplied Digital RJ 22 for telephone handset RJ 22 cable connection to handset jack Dimensions 4 6 in wide x 1 6 in tall x 1 in deep 118 x 45 x 25 mm Weight 1 9 0 2 oz 53 59 May be mounted by telephone jack Note Data apply for both analog and digital telephone system interfaces unless otherwise noted External Microphone Connection Comes with 70 in 1 8 m cable with RJ 22 connector Microphone sensitivity 47 4 dB Weight 2 4 0 2 oz 69 5 g 14 Spracht Limited Warranty Policy Spracht warrants it products against defects or malfunctions in material and workmanship under normal use and service with the exceptions stated below This warranty lasts for one year from the original date of purchase Coverage terminates if you sell or otherwise transfer the product In order to keep this warranty in effect the product must have been handled and used as pre scribed in the instructions accompanying the product Spracht shall at its option repair or replace a defective unit covered by this warranty or shall refund the product purchase price Repair replacement with a new or reconditioned unit or refund as provided under this warranty is your exclusive remedy This warranty does not cover any damages due to accident misuse abuse or negligence Spracht shall not be liable f
9. d e The Spracht E CP 3 extended warranty extends coverage to 3 years and also offers advance replacement of a faulty product Spracht will provide a functioning unit within five business days within the continental U S from the issuance of the RA number you return the faulty product to Spracht after the replacement is received Under both the E CP 3 and E CP 3 extended warranties Spracht agrees to repair or replace your Voice Center TM Conference Phone in accordance with the terms of the Limited Warranty set forth above for a period of three years from the date of purchase The extended warranties do not cover preventive maintenance and are subject to the limitations described above with respect to proper use of the product by the purchaser The extended warranties are not transferable and apply only to the original purchaser of the product An extended warranty must be purchased within 30 days of purchase and may be purchased using a credit card for payment either using the registration and order form enclosed with the product or by contacting Spracht at 650 318 8061 be ready with all information on the registration and order form 15 Federal Communications Commission Statement Note The Voice Center Conference Phone equipment has been tested and found to comply with the limits for a Class B Digital Device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference
10. e System Answering a call When the Conference Phone rings press the ON OFF key to answer the call The green LED illuminates to indicate the Conference Phone is on Adjusting the speaker volume While a call is in progress use the W decrease volume and A increase volume keys to adjust the speaker volume The speaker volume setting is saved until adjusted again Adjusting the ringer volume When the phone is ringing and a call is not in progress use the W decrease volume and A increase volume keys to adjust the ringer volume The ringer volume setting is saved until adjusted again Placing a call Press the ON OFF key to obtain a dial tone then dial the call using the Conference Phone keypad Redialing a call While the Conference Phone is off green LED not lit press the REDIAL key to call the last number dialed To cancel the automatic redial press the REDIAL key again Muting a conversation To turn off all microphones during a conversation press the MUTE key The red LEDs illuminate to indi cate the participants cannot be heard at the other end of the line Press the MUTE key again to turn on the microphones Ending a call Press the ON OFF key The green LED will extinguish Accessing special telephone service features These features are only available if you have enrolled in these services with your local telephone company Call waiting Press FLASH key to switch between calls Three way calling 1 Press
11. e power unplug the power adapter then plug it in again This allows the Conference Phone to adapt to its new surroundings and deliver optimal performance e Do not move the Conference Phone during a conversation e Use the Conference Phone in an environment as free as possible from background noise e Whenever possible keep items that could cause noise or acoustic interference away from the Conference Phone and if used External Microphones Items that could compromise audio quality include plants cups and papers near the microphones e Have speakers direct their voices toward the Conference Phone or if used External Microphone e Speak at normal conversational volume e To obtain best audio quality adjust the microphone setup for the room size and arrangement In a small closed room without sound absorbing walls use the microphone selection switch to activate only one of the Conference Phone s built in microphones For large rooms and irregular layouts such as L U and T shaped conference tables connect External Microphones EM 101 purchased separately Selecting Number of Built in Microphones That Will Be Active The user can select how many of the Conference Phone s built in microphones Wi smaller rooms and asymmetric conference arrangements better audio quality sometimes can be obtained by deactivating one or two of the built in m of With setting 3 the factory default all three microphones are active
12. gital Interface to digital telephone using RU 22 telephone Connect Conference Phone to Digital Interface using the RJ 45 conference phone cable supplied with the Conference Phone e Plug one end of the RJ 45 conference phone cable larger than a standard Ru 1 1 cable into the connector labeled Control Box on the underside of the Conference Phone e Plug the other end of the RJ 45 cable into the Digital Interface connector labeled Conference Phone handset cables e Unplug handset curly cord from digital telephone and plug it into the Digital Interface connector labeled Handset e Plug one end of RJ 22 telephone handset cable supplied with the Digital Interface into the Digital Interface connector labeled Phone e Plug the other end of that RJ 22 cable into the handset jack on the digital telephone from which the handset curly cord was disconnected See diagram at top of page 9 Hang up the handset on the digital telephone Connect Conference Phone power adapter to Digital Interface In North America use 120 VAC power adapter PA 101 supplied with Conference Phone in Europe use 230 VAC power adapter PA 201 available in EK 101 European adapter kit e Plug DC plug on power adapter cord into the Digital Interface connect labeled DC12V e Plug power adapter into a nearby electrical outlet do not exceed voltage rating of p
13. in a residential installation The equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communication However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interfer ence to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to connect the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Declaration of Compliance The Voice Center Conference Phone complies with Part 68 and part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received includ ing interference that may cause undesired operation REN 0 1 16 SPRACHT Tel 650 318 8061 Fax 650 318 8060 26 2 Bayshore Parkway Bldg 900 Mountain View CA 94043 USA www spracht com Rev 4 02 Made in Taiwan SP1009 Spracht and Voice Center are trademarks of ODI 2001 Spracht
14. inger volume setting is saved until adjusted again Placing a call 1 Pick up the digital telephone handset and dial the call 2 Press the ON OFF key to take the call on the Conference Phone Note with a digital telephone system you must use the digital telephone to dial all calls You cannot use the Conference Phone keypad to dial or redial calls with a digital telephone system Note the digital telephone handset must remain off hook for the duration of the call Muting a conversation To turn off all microphones during a conversation press the MUTE key The red LEDs illuminate to indi Cate the participants cannot be heard at the other end of the line Press the MUTE key again to turn on the microphones Ending a call Hang up the digital telephone handset Press the ON OFF key The green LED will extinguish 11 General Setup Tips P ps for Obtaining Optimal Acoustic Performance e To minimize echoes place the Conference Phone at the center of the room or at least away from walls at least 20 inches 0 5 m from any wall e t is important to place the Conference Phone on the surface where it will be used before applying power When power is applied to the Conference Phone it emits a series of self test tones to auto matically calibrate its performance for the acoustic environment e f you significantly change the acoustic environment for example by placing the Conference Phone in a different location cycle th
15. ion the Voice Center s digital speech processing enables simultaneous two way communication This eliminates clipped sentences and awkward one way conversations allowing smooth and natural discussion e PBX compatible the Voice Center Conference Phone has the versatility to function with virtually all phone systems standard analog lines and with optional digital adapter even multi line and digital PBX systems e 360 coverage three built in microphones provide 360 coverage so all participants can speak and be heard clearly from anywhere in the room e Convenient controls The keypad provides control keys for volume mute redial and flash which enables three way conference calls LEDs indicate call status and mute operation e Expandable the Voice Center Conference Phone has input jacks for two external microphones for use in larger conference rooms and also includes an RCA output jack so conference calls can be recorded For complete specifications see page 14 of this manual Quick Start Guide 1 Package Contents Check the package contents to confirm you have everything at hand North America EK 101 European adapter kit RJ 11 Telephone AT 101 analog AT 102 European analog cable 20 ft 6 m telephone system interface telephone system interface RJ 45 Conference phone PA 101 120 VAC PA 201 230 VAC Conference phone cable 20 ft 6 m power adapter E power adapter For
16. nce phone Connection of an External Recording Device Optional The Voice Center Conference Phone provides an RCA jack for connection of an external recording device such as a tape recorder This provides a convenient means to record a teleconference held with the Conference Phone and to obtain the highest quality recording possible The connection for the external recording device is an audio RCA coaxial connector located on the underside of the Conference Phone 13 Conference Phone Controls and Interface Switches Microphone switch to turn on 1 Tone pulse switch to select 2 or all 3 built in microphones telephone dialing mode LED indication lights Green LED indicates unit is on 3 red LEDs one on each arm indicate mute is activated Speakerphone connections Inputs Output RJ 45 for telephone interface cable 1 RCA jack for connection to 2 RJ 22 jacks for external mics external recorder not supplied Electrical specifications Power 12 VDG 120 VAC adapter supplied 300 mA at 120 VAC 1000 mA at 12 VDG Current draw Standby 110 10 mA Operation 220 mA and above Output of loudspeaker 5W at 89 Microphone sensitivity 3 internal microphones 47 4 dB Mechanical specifications Speakerphone main body 13 inch 33 cm diameter each arm extends 6 5 inch from the center 20 0 7 oz 567 20 g Comes with 20 ft 6 m RJ 45 cable Telephone System Interface Connections Inputs Outputs Both analog and digit
17. og Telephone System 4 Setup with Analog Telephone System If you are connecting the Voice Center Conference Phone to an analog telephone system follow the instructions below In North America use the AT 101 Analog Telephone System Interface supplied with the conference phone in Europe use the AT 102 European Telephone System Interface available in the EK 101 European adapter kit Throughout the instructions the Voice Center Conference Phone is referred to as Conference Phone and the Analog Telephone System Interface whether AT 101 for North America or AI 102 for Europe is referred to as Analog Interface 1 Connect Conference Phone to Analog Interface using the RJ 45 conference phone cable supplied with the Conference Phone e Plug one end of the RJ 45 conference phone cable larger than a standard f RJ 11 cable into the connector labeled Control Box on the underside of the Conference Phone e Place the Conference Phone on the table where it will be used For best acoustics place the Conference Phone at least 20 inches 0 5 m from any wall and at least 6 inches 0 15 m from the edge of the table e Plug the other end of the RJ 45 cable into the Analog Interface connector labeled Conference Phone Connect Analog Interface to telephone jack using RJ 11 telephone cable e Plug one end of RJ 11 telephone cable supplied with the Conference Phone into the Analog Interface connector labeled
18. or any incidental or consequential damages Some states do not allow limitation or exclusion of incidental or consequential damages so the above limitation or exclusion may not apply to you Implied warranties of merchantability and fitness for a particular purpose are limited in duration to the duration of this warranty Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you To make a warranty claim the purchaser must obtain a return authorization number from Spracht serial number and purchase date required and then return the product to Spracht at purchaser s expense A copy of the original dated receipt or shipping document must accompany the product To obtain a return authorization see Warranty on our Web site at www spracht com send an e mail to info spracht com or contact us at Spracht Tel 650 318 8061 Fax 650 318 8060 2672 Bayshore Parkway Bldg 900 Mountain View CA 94043 USA For repair or replacement of failed product allow 4 to 6 weeks for processing and shipment This warranty gives you specific legal rights and you may also have other rights which vary from state to state Extended Warranty Coverage Spracht offers two extended warranties for the Voice Center Conference Phone for an additional charge e The Spracht E CP 3 extended warranty provides the same coverage as the Limited Warranty set forth above but extends coverage to a 3 year perio
19. ower adapter Note At this point the Conference Phone will emit a musical jingle this self test allows it to automatically calibrate its performance for the acoustic environment Note See system illustration on next page Digital Systems Digital Telephone System Interface CI N e Digital Interface it Electrical outlet Digital phone jack 4 Use Digital Interface s 4 position switch to adjust audio level by making a test call e Lift digital telephone handset from its cradle then press Conference Phone s On Off key Important the digital telephone handset must be off hook for the duration of the call the Digital Interface disables the handset microphone when the Conference Phone is on e Place the call from the digital telephone s keypad Note The Conference Phone keypad cannot be used to dial calls through most digital phone systems the keypad on the digital tele phone must be used e Adjust the audio level with the 4 position switch level 1 is highest level 4 is lowest If the setting is too high for the digital telephone the party at the other end of the line may get noise feedback buzz tone or squeal if the setting is too low your voice may be too faint to be heard e End the call by pressing the Conference Phone s On Off key and hanging up the digital telephone handset Wall Mounting of Digital Interf
20. phone is ringing or no call is in progress decreases the ringer volume Pressing W key while a call is in progress decreases the speaker volume A increase volume Pressing A key when phone is ringing or no call is in progress increases the ringer volume Pressing A key while a call is in progress increases the speaker volume MUTE Pressing the MUTE key during a call turns off all microphones Red LEDs above the MUTE key and above microphones on other two legs of the Conference Phone illuminate to indicate confer ence participants cannot be heard at the other end of the line Pressing the MUTE key again reactivates the microphones and red LEDs extinguish Digital Systems Conference Phone Operation with Digital Phone System Answering a call 1 When the phone rings pick up the digital telephone handset to accept the call 2 Press the ON OFF key to take the call on the Conference Phone The green LED illuminates to indi cate the Conference Phone is on the microphone in the digital telephone handset is disabled while the Conference Phone is on Note the digital telephone handset must remain off hook for the duration of the call Adjusting the speaker volume While a call is in progress use the W decrease volume and A increase volume keys to adjust the speaker volume The speaker volume setting is saved until adjusted again Note When a call is not in progress pressing the volume keys adjusts the ringer volume The r
21. t Here is additional information to help you deter mine the type of phone system you have Analog MON Analog phones are used for public switched telephone networks Front view plain old telephone service POTS from Ma Bell However some private exchanges support analog telephones fax machines and modems Look at the back of your telephone if it says complies with Part 68 FCC Rules and has a Ringer Equivalence Number REN the phone and line are analog Rear view For analog telephone systems use the Voice Center AT 101 CO Analog Interface shown at right supplied with the Voice Center PHONE DE coc bom Conference Phone and follow the installation and operating instructions that begin on page 4 AT 101 Analog Telephone System Interface Digital MIMI Digital telephone systems are usually found in corporate environments Front view bic switch Most PBXs private branch exchanges are digital Signs that the phone and line are digital phones with multiple function keys and or multiple lines the need to dial 9 for an outside line no fax machines or modems connected directly to the phone line Caution if analog equipment is connected directly to a digital telephone system it will not Rear view work and the equipment can be damaged
22. te Conversations Optional To conduct private conversations using a handset you may connect a standard analog telephone to the Voice Center Analog Interface e Plug a standard RJ 11 cable from the analog telephone into the connector in the Analog Interface labeled Phone The standard phone is then connected to the telephone line in parallel with the Conference Phone and the standard phone and Conference Phone can be used independently To transfer a call from the Conference Phone to an external analog telephone connected as noted above e Pick up the analog telephone handset while the Conference Phone is on e Turn off the Conference Phone by pressing its ON OFF key To transfer a call from the external analog telephone to the Conference Phone e While the private call is in progress turn on the Conference Phone by pressing its ON OFF key e Hang up the handset of the external telephone Analog Systems Keypad Functions with Analog Phone System E FLASH ii NE ax 7 77 REDIAL Haf MUTE an A Increase volume e ES volume Il ON OFF Pressing the ON OFF key turns the Conference Phone on to obtain a dial tone or turns it off to terminate a call The green LED just above the ON OFF key illuminates when the Conference Phone is on REDIAL If a dial tone is available pressing the REDIAL key redials the last number dialed on the Conference Phone Note you do
23. x For digital telephone systems use the Voice Center DT 102 Digital re dmt be Interface shown at right sold separately from the Voice Center Conference Phone The Digital Interface is the same size and shape DT 102 Digital Telephone as the Analog Telephone System Interface but has different circuitry System Interface the Digital Interface can be identified by the 4 position switch on its front side For digital telephone systems follow the installation and operating instructions that begin on page 8 Setup Tips e Choose an appropriate location for the Conference Phone Use the Conference Phone in an environment as free as possible from background noise To minimize echoes position the conference phone at the center of the room or at least away from walls Avoid items that could cause noise or acoustic interference e Set up the Conference Phone following the instructions for the type of telephone system you are using Instructions for an Analog Phone System begin on page 4 Instructions for a Digital Phone System begin on page 5 e Make adjustments as necessary to obtain optimal acoustic performance Important The Voice Center Conference Phone s digital sound processing actively responds to the acoustic environment In small and or reflective rooms resonance echoes can cause variable performance Some small adjustments can dramatically improve results See page 12 for tips to Improve acoustic performance Anal
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