AT&T SB67010 PSTN Installation Manual page 100

Synapse Installation Guide
To adjust Echo Suppression and Line Loop Length settings:
1. If line recalibration and checking parallel devices do not resolve audio echoes, go to
the Advanced Configuration section on the PSTN Settings page.
2. Under Echo Suppression for the affected line(s), select Aggressive.
3. Click
4. Test your line(s) by establishing a call under the same conditions in which the echo
condition was previously heard.
5. If the condition persists, leave the Echo Suppression set to Aggressive, and adjust
the Line Loop Length. This setting compensates incoming and outgoing audio
levels depending on line loop length. Try Medium first, click
a test call.
6. If the condition persists, try Short, click
Troubleshooting
to save the settings.
You may need to test different combinations of Echo Suppression and Line
Loop Length settings to achieve the desired results.
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, and then make
, and then make a test call.