Installation guide

Synapse Installation Guide Back to Contents
Troubleshooting 128
MoH audio is too quiet, fluctuating, or dropping out.
Probable Cause Corrective Action
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 144.
 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.
Do not exceed the ATA AUX IN input specifications. Grossly exceeding these
specifications can damage the ATA. See “Appendix B: Technical Specifications”
on page 144.