AT&T SB67010 PSTN Installation Manual page 126

Synapse Installation Guide
MoH is not playing and the AUX IN LED is
Probable Cause
MoH not properly configured.
Troubleshooting
GREEN.
Corrective Action
Verify that the audio source is playing and not

muted.
Set the MoH output volume level by adjusting the

playback volume of the music source device
connected to the ATA. You may need to set the
volume near the maximum.
Some MoH sources without volume controls, such

as those with audio-out jacks, are usually very
loud and might be too loud.
Synapse limits the volume of the sound delivered

to the phone line. Because of this, there may be
audio clipping (missing sounds) for some sources.
Some forms of music do not play well over a

telephone line.
Verify that the audio source meets the electrical

specifications for ATA AUX IN. See
Technical Specifications" on page
Verify that Hold Announcement is not playing a

silent message.
For more information, see the Synapse
Administrator's Guide at
www.telephones.att.com/synapse
guides
.
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"Appendix B:
142.