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Echo problem

samuraitux
Posts: 13
 Member Since:
2008-01-05
Submitted by samuraitux on Fri, 02/22/2008 - 9:01am.

Hello Everyone. I need help in a big way. I am having problems with echoing. I have no hardware installed for echo cancellation. I do have oslec but I am not sure I have it setup correctly. Any help would be appreciated.

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kerryg
Posts: 6405
 Member Since:
2006-05-31
What kind of cards are you
Fri, 02/22/2008 - 9:10am

What kind of cards are you using?

--

Kerry Garrison
trixbox Community Director
VoipSpeak.net - Asterisk Tutorials



samuraitux
Posts: 13
 Member Since:
2008-01-05
Just the onboard network
Tue, 02/26/2008 - 1:17pm

Just the onboard network card. I have QOS setup but they still have echo's. Again I don't have any hardware echo cards



mustardman
Posts: 1213
 Member Since:
2006-06-18
That would either be your
Tue, 02/26/2008 - 1:23pm

That would either be your phones or headsets or your SIP provider. Asterisk Echo can is not used for SIP only calls as far as I know. Only acoustic echo can which is done by the phones themselves.

Excessive latency on your LAN/WAN can make the problem worse.



kerryg
Posts: 6405
 Member Since:
2006-05-31
OSLEC is only used for TDM
Tue, 02/26/2008 - 1:20pm

OSLEC is only used for TDM cards. If you are having echo over VoIP trunks then it is usually network delays, packet loss, and network jitter and there isnt much you can do about that besides use a different provider or get a different internet connection based on where the problem is.

--

Kerry Garrison
trixbox Community Director
VoipSpeak.net - Asterisk Tutorials



samuraitux
Posts: 13
 Member Since:
2008-01-05
OSLEC
Wed, 02/27/2008 - 9:05am

That sucks. Alright guys. Thanks for the insight. One last question. I have linksys phones and noticed that there is an option for Silence Supp enable. Also could I try adjusting the input gain on the headset. The linksys phones are spa942



mustardman
Posts: 1213
 Member Since:
2006-06-18
Yea, gains on the phones can
Wed, 02/27/2008 - 9:34am

Yea, gains on the phones can affect acoustic echo for sure.



samuraitux
Posts: 13
 Member Since:
2008-01-05
Hardware Card
Wed, 02/27/2008 - 11:31am

Can someone tell me what kind of card would I use for say a cable modem? Also what type of card would I use for a dsl line?



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