User`s guide

Troubleshooting 290
Synapse User’s Guide
MoH audio is too quiet,
fluctuating, or dropping out.
The volume on the audio
source is too low or too high.
If the volume is too high,
overdriving the audio
components may be causing
short periods of sound to
drop out (not be heard).
 If you can adjust the output volume of your audio source
(like the headset jack of an MP3 player), call into your
Synapse system, place the call on hold, listen to MoH on
the outside line, and adjust the audio volume on your
audio source up or down until the best sound quality is
achieved.
 If your audio source does not have adjustable volume,
such as the AUX OUT on a radio, verify that the audio
source meets the electrical specs for ATA AUX IN. See
“Appendix B: Technical Specifications” on page 317.
 If you created a recording to use as the audio source, try
to adjust the recording volume by speaking louder or
speaking closer to the microphone.
 Please note that some types of music sound better then
others when played across a telephone line. For example,
classical music with extreme volume fluctuations may not
sound very good when used as MoH.
Use of audio source outputs
whose levels are not
adjustable, such as RCA “Line
Out” may result in
unacceptable background
music levels and should not
be used.
 Use an audio source with output volume control.
Symptom Probable Cause Corrective Action ATA MoH Troubleshooting
Speaker outputs should not be used as the MoH
audio source as they can exceed the ATA AUX IN
input specifications. See “Appendix B: Technical
Specifications” on page 317. Grossly exceeding
these specifications can damage the ATA.