Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

SPA8000 echo issues

On a generic SIP server implemenation, has anyone had an issue with SPA8000 and echo issues. is there a setting for echo cancellation.

thanks

peter

1 REPLY

SPA8000 echo issues

1) check impedance

Impedance mismatch between the telephone and the IP Telephony gateway phone port can lead to near-end echo. The Linksys ATA device has a nearend echo canceller that compensates for impedance match. The Linksys ATA device also implements an echo suppressor with comfort noise generator (CNG) so that any residual echo is not noticeable. Echo Cancellation is configured in the Regional, Line, and PSTN Line tabs.

2) check echo options under every line

Echo Canc Enable: To enable the use of the echo canceller, select yes. Otherwise, select no.

The default is yes

Echo Canc Adapt Enable: To enable the echo canceller to adapt, select yes. Otherwise, select no.

The default is yes

Echo Supp Enable: To enable the use of the echo suppressor, select yes. Otherwise, select no.

The default is yes.

3) check echo and volume options under Regional menu

More Echo Suppression: Enable or disable more echo suppresion. The default is no.

Reduce volume via FXS Port Input Gain and FXS Port Output Gain

4) reduce (if it possible) the jitter buffer under line menu

Network Jitter Level

5) check network latency

Regards.

2427
Views
0
Helpful
1
Replies