Operation Manual
SoundStation VTX 1000  Operation Manual
26
User’s Guide
SoundStation VTX 1000  Operation Manual
27
User’s Guide
   All multi-party calls are narrowband 
calls. When you press the 
CONF button 
to add another party, any wideband 
connection you may have had with your 
first party will revert to narrowband, 
and you will no longer see 
on your screen. 
   Your connection will also revert to 
narrowband if another party picks up 
a phone which is connected in parallel 
with your SoundStation VTX 1000.
   Excessive noise on the line will also 
cause the phone to automatically switch 
to narrowband. If this problem persists, 
contact your pone line telephone service 
provider or system administrator. VTX 
1000 is designed to provide wideband 
service on business quality phone lines.
Reverting to Narrowband
 If a remote party cannot hear you at all, 
cannot hear you well, or cannot hear 
you via particular microphones, first 
determine whether any external audio 
input devices are in use, such as a 
wireless microphone or mic mixer.
 If such devices are in use, check 
that all the connections are secure. 
(See “Connection Diagram,” pg. 31.) 
Then, access the Audio Setup (as 
described on pg. 17) and make sure that 
Aux Input (pg. 19) is On, so that input 
from these devices is recognized.
 If such devices are not in use, 
access the Audio Setup (as described 
on pg. 17) and make sure that Console 
Mics (pg. 20) are On.
 If the only such devices in use are the 
VTX’s Extended Microphones, access 
the Audio Setup (as described on pg. 
17) and make sure that Console Mics 
(pg. 20) are On. This setting controls 
both the internal microphones and the 
Extended Microphones.
Remote Party Cannot Hear You
 If physical damage is severe enough 
that the internal parts become visible, 
disconnect the SoundStation VTX 1000 
immediately. Do not reconnect it to 
the telephone network until the 
SoundStation VTX 1000 has been 
repaired.
Physical Damage
 Do not move the SoundStation VTX 
1000 console while it is in use.
 Keep your hands away from the unit 
during calls.
 Keep papers, cups, coffee pots, etc., 
away from the unit.
 At the beginning of a call, let someone 
at each location speak in turn for a few 
moments, to enable SoundStation VTX 
1000 to adapt to its environment.
 The other party may be using lower-
quality equipment or a half-duplex 
conference bridge, in which case there 
may be little you can do.
 Try calling again to see if another line 
provides a better connection.
Short Silences, Echoes, or Clipped Speech
 If sound quality is problematic, or there 
is no sound, first determine whether any 
external audio output devices are in use, 
such as a subwoofer, PA system, or tape 
recorder. 
 If such devices are in use, check 
that all the connections are secure. 
(See “Connection Diagram,” pg. 31.) 
Then, access the Audio Setup (as 
described on pg. 17) and make sure 
that Aux Output (pg. 19) is set 
correctly. If a Subwoofer is in use, 
set Aux Output to Subwoofer. 
If any other device is in use, 
set Aux Output to Ext Speaker, 
Record Out, or Off.
Problematic Sound Quality or No Sound
 Noisy equipment, such as a computer or 
fan, may make it difficult for you to hear 
the other party. Both parties should turn 
off any noisy equipment.
 Try calling again to see if another line 
provides a better connection.
Excessive Noise










