Spracht Telephone cp 2010 User Manual

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Analog or Digital Telephone System? . . . . . . . . . . . . . . . . . . . . . . . . 3  
Setup Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Analog Telephone System  
Setup with Analog Telephone System . . . . . . . . . . . . . . . . . . . . . . . . 4  
Selection of Tone or Pulse Dialing . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Connection of Standard Phone for Private Conversations (Optional) . . . 5  
Keypad Functions with Analog Telephone System. . . . . . . . . . . . . . . . . 6  
Operation with Analog Telephone System. . . . . . . . . . . . . . . . . . . . . . 7  
Digital Telephone System  
Setup with Digital Telephone System. . . . . . . . . . . . . . . . . . . . . . . . . 8  
Keypad Functions with Digital Telephone System . . . . . . . . . . . . . . . . 10  
Operation with Digital Telephone System . . . . . . . . . . . . . . . . . . . . . 11  
General Setup Topics  
Tips for Obtaining Optimal Acoustic Performance . . . . . . . . . . . . . . . 12  
Selecting Number of Built-in Microphones to be Active . . . . . . . . . . . . 12  
Installation of External Microphones . . . . . . . . . . . . . . . . . . . . . . . . 13  
Connection of an External Tape Recorder. . . . . . . . . . . . . . . . . . . . . 13  
Technical Reference  
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Spracht Limited Warranty Policy . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
FCC Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
1
 
Introduction  
Thank you for choosing the Voice Center Conference Phone, a high performance audio conferencing system.  
Its features include:  
Full duplex communication – 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.  
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.  
360° coverage – three built-in microphones provide 360° coverage so all participants can speak and  
be heard clearly from anywhere in the room.  
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.  
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  
cable (20 ft/6 m)  
AT-101 analog  
telephone system interface  
AT-102 European analog  
telephone system interface  
RJ-45 Conference phone  
cable (20 ft/6 m)  
PA-201 230 VAC  
power adapter  
PA-101 120 VAC  
power adapter  
Conference phone  
For 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  
1
2
3
4
Digital telephone  
system interface  
RJ-22 Telephone handset  
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,  
• 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.  
• Do not use a telephone during an electrical storm; there is some risk of electrical shock from lightning.  
• Do not use this conference phone near a gas leak or vapors that could be ignited.  
• Follow the instructions in this User’s Manual.  
2
 
Quick Start Guide  
3. 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 company’s teleservices department. Here is additional information to help you deter-  
mine the type of phone system you have.  
Analog  
Analog phones are used for public switched telephone networks -  
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.  
Front view  
Rear view  
For analog telephone systems, use the Voice Center AT-101  
Analog Interface shown at right (supplied with the Voice Center  
Conference Phone), and follow the installation and operating  
instructions that begin on page 4.  
PHONE LINE  
CONFERENCE  
PHONE  
DC 12V  
AT-101 Analog Telephone  
System Interface  
Digital  
Digital telephone systems are usually found in corporate environments.  
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  
work, and the equipment can be damaged.  
Front view  
Rear view  
4-position switch  
1
2
3
4
For digital telephone systems, use the Voice Center DT-102 Digital  
Interface shown at right (sold separately from the Voice Center  
Conference Phone). The Digital Interface is the same size and shape  
as the Analog Telephone System Interface, but has different circuitry;  
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.  
HANDSET PHONE  
CONFERENCE  
PHONE  
DC 12V  
DT-102 Digital Telephone  
System Interface  
4. Setup Tips  
• 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.  
• 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.  
• 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.  
3
 
Analog Telephone System  
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 AT-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.  
• Plug one end of the RJ-45 conference phone cable (larger than a standard  
RJ-11 cable) into the connector labeled “Control Box” on the underside of  
the Conference Phone.  
• 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.  
• Plug the other end of the RJ-45 cable into the Analog Interface  
connector labeled “Conference Phone.”  
PHONE  
LINE  
CONFERENCE  
PHONE  
DC 12V  
2. Connect Analog Interface to telephone jack using RJ-11 telephone cable.  
• Plug one end of RJ-11 telephone cable supplied with the Conference  
Phone into the Analog Interface connector labeled “Line.”  
• Plug the other end of that RJ-11 cable into a telephone jack.  
PHONE  
LINE  
CONFERENCE  
PHONE  
DC 12V  
3. 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).  
• Plug DC plug on power adapter cord into the Analog Interface connector  
labeled “DC12V.”  
HANDSET PHONE  
CONFERENCE  
PHONE  
DC 12V  
• 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  
Electrical outlet  
Phone jack  
4
 
Analog Systems  
Wall Mounting of Analog Interface (Optional)  
• Install the two mounting screws supplied with the Analog Interface in the  
wall. Leave approximately 3/16 in. (0.5 cm) between screw head and wall.  
For wall mounting  
• 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:  
• 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 Private Conversations (Optional)  
To conduct private conversations using a handset, you may connect a  
standard analog telephone to the Voice Center Analog Interface:  
• Plug a standard RJ-11 cable from the analog telephone into the  
PHONE  
LINE  
CONFERENCE  
PHONE  
DC 12V  
connector in the Analog Interface labeled “Phone”.  
1
4
7
2
5
8
0
3
6
9
#
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:  
• Pick up the analog telephone handset while the Conference Phone is on.  
Turn off the Conference Phone by pressing its ON/OFF key.  
To transfer a call from the external analog telephone to the Conference Phone:  
• While the private call is in progress, turn on the Conference Phone by pressing its ON/OFF key.  
• Hang up the handset of the external telephone.  
5
 
Analog Systems  
Keypad Functions with Analog Phone System  
FLASH  
ON/OFF  
REDIAL  
MUTE  
Reduce  
volume  
Increase  
volume  
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 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:  
• Call waiting - pressing FLASH key switches between calls (requires subscription to local tele-  
phone company’s call waiting service).  
• 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.  
(reduce volume)  
Pressing key when phone is ringing (or no call is in progress) decreases the ringer volume.  
Pressing key while a call is in progress decreases the speaker volume.  
(increase volume)  
Pressing key when phone is ringing (or no call is in progress) increases the ringer volume.  
Pressing 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).  
6
 
Analog Systems  
Conference Phone Operation with Analog Phone 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 (decrease volume) and (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 (decrease volume) and (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 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 5), The following instructions explain how  
to transfer calls between the Conference Phone and an external telephone connected to the Analog  
Interface.  
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.  
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.  
7
 
Digital Telephone System  
Setup of Conference Phone with Digital Phone System  
Note: The DT-102 Digital Telephone System Interface is required for use of the Voice Center  
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 DT-102 Digital Telephone System Interface is  
referred to as “Digital Interface.”  
1. Connect Conference Phone to Digital Interface using the RJ-45  
conference phone cable supplied with the Conference Phone.  
• Plug one end of the RJ-45 conference phone cable (larger than a  
standard RJ-11 cable) into the connector labeled “Control Box” on  
the underside of the Conference Phone.  
• Plug the other end of the RJ-45 cable into the Digital Interface  
connector labeled “Conference Phone.”  
HANDSET PHONE  
CONFERENCE  
PHONE  
DC 12V  
2. Connect Digital Interface to digital telephone using RJ-22 telephone  
handset cables.  
• Unplug handset “curly cord” from digital telephone and plug it into  
the Digital Interface connector labeled “Handset.”  
HANDSET PHONE  
CONFERENCE  
PHONE  
DC 12V  
• Plug one end of RJ-22 telephone handset cable supplied with the  
Digital Interface into the Digital Interface connector labeled  
“Phone.”  
HANDSET PHONE  
CONFERENCE  
PHONE  
DC 12V  
• 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.  
3. 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).  
• Plug DC plug on power adapter cord into the Digital Interface connect  
labeled “DC12V.”  
HANDSET PHONE  
CONFERENCE  
PHONE  
DC 12V  
• 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.  
Note: See system illustration on next page.  
8
 
Digital Systems  
Digital Telephone System Interface  
Digital Interface  
Electrical outlet  
1
4
7
2
5
8
0
3
6
9
#
Digital phone jack  
4. Use Digital Interface’s 4-position switch to adjust audio level by  
making a test call.  
• 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.  
• 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.  
• 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.  
1
2
3
4
• End the call by pressing the Conference Phone’s “On/Off” key and  
hanging up the digital telephone handset.  
Wall Mounting of Digital Interface (Optional)  
• 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.  
For wall mounting  
• Place the Digital Interface over the mounting screws and slide it down  
to fix it in position.  
9
 
Digital Systems  
Keypad Functions with Digital Phone System  
FLASH  
ON/OFF  
REDIAL  
MUTE  
Reduce  
volume  
Increase  
volume  
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 DT-102 Digital Interface. The standard 12-button telephone  
keypad, REDIAL, and FLASH keys do not function with most digital telephone systems.  
(reduce volume)  
Pressing key when phone is ringing (or no call is in progress) decreases the ringer volume.  
Pressing key while a call is in progress decreases the speaker volume.  
(increase volume)  
Pressing key when phone is ringing (or no call is in progress) increases the ringer volume.  
Pressing 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).  
10  
 
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 (decrease volume) and (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 ringer  
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  
Tips for Obtaining Optimal Acoustic Performance  
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).  
• It 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.  
• If you significantly change the acoustic environment (for example, by placing the Conference Phone in  
a different location), cycle the 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.  
• Do not move the Conference Phone during a conversation.  
• Use the Conference Phone in an environment as free as possible from background noise.  
• 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.  
• Have speakers direct their voices toward the Conference Phone or (if used) External Microphone.  
• Speak at normal conversational volume.  
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  
will be active - one, two, or all three. The factory setting is three, but in  
smaller rooms and asymmetric conference arrangements, better audio  
quality sometimes can be obtained by deactivating one or two of the built-in  
microphones. The microphone selection switch is located on the underside  
of the Conference Phone, and is labeled “MIC SW.”  
2
3
With setting 3 (the factory default), all three microphones are active. With  
setting 1, only the microphone by the keypad is active. With setting 2, the  
microphones in positions 1 (by the keypad) and 2 are active.  
1
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).  
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.  
External microphone  
Conference 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  
 
Specifications  
Conference Phone  
Controls and Interface  
Switches  
Microphone switch to turn on 1,  
2, or all 3 built-in microphones  
Tone/pulse switch to select  
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  
2 RJ-22 jacks for external mics  
1 RCA jack for connection to  
external recorder (not supplied)  
Electrical specifications  
Power  
12 VDC; 120 VAC adapter supplied (300 mA at 120 VAC; 1000 mA at 12 VDC)  
Current draw  
Standby: 110 10 mA  
5W at 8  
Operation: 220 mA and above  
Output of loudspeaker  
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 digital  
Analog  
12 VDC for power adapter,  
RJ-11 for telephone line  
RJ-45 cable to conference phone  
RJ-11 for external telephone (neither  
cable nor telephone supplied)  
Digital  
RJ-22 for telephone handset  
RJ-22 cable connection to handset jack  
Dimensions  
Weight  
4.6 in. wide x 1.6 in. tall x 1 in. deep (118 x 45 x 25 mm)  
1.9 0.2 oz. (53 5 g) 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  
-47 4 dB  
Microphone sensitivity  
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 for 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  
send an e-mail to [email protected], 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.  
• 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 period.  
• 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 CenterTM 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 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:  
• Reorient or relocate the receiving antenna.  
• Increase the separation between the equipment and receiver.  
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  
• 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  
2672 Bayshore Parkway, Bldg 900  
Mountain View, CA 94043 USA  
 

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