I had a similar problem and solved it changing the params of "input gain" on my pstn-gateway, change from a value of 10 to a value of 1 and that eliminated the echo on the SIP Phones.
Dave Packham wrote:
Same prob here. 15 SIP phones only get eco when going to the PSTN...
if you find something let me know
Dave
Hello,[EMAIL PROTECTED] 7/1/2003 8:53:13 AM >>>
I can't have asterisk working without echo when I place a call from IP
phone (SIP or H323) to a PSTN Phone. The called number as no problem with echo but there is a very audible echo in the SIP phone. This situation occurs either when connected with ISDN card thru i4linux driver and with my openline card from voicetronix.
Do you have any suggestion fo that?
Regards,
Daniel ANDRE
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