I have soundpoing ip 500 phones and the first few seconds of every call has echo, which then goes away. Is there a way to have the echo cancel on at the beginning? It seems like it is testing at the beginning but it would be nice if I could have it start closer.... Thanks Sean Garland Siskiyou Technology Consultants 205 N. Mt. Shasta Blvd. Suite 100 Mt. Shasta, CA 96067 Phone: (530)926-1489 FAX: (530)926-6296 sean@siskiyoutech.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20040105/15bf2154/attachment.htm
Hey Sean, Are you using Zap modem cards (X100P)? There can be bad echo with those things. The echo canceling effect you are hearing comes from the Polycom phones - they dynamically "learn" from the echo at the beginning of the call and adjust the echo cancellation accordingly. We are using a Mediatrix SIP gateway now - no echo at all. Christian On Monday 05 January 2004 13:28, Sean Garland wrote:> I have soundpoing ip 500 phones and the first few seconds of every call > has echo, which then goes away. Is there a way to have the echo cancel > on at the beginning? It seems like it is testing at the beginning but > it would be nice if I could have it start closer.... > > Thanks > > Sean Garland > Siskiyou Technology Consultants > 205 N. Mt. Shasta Blvd. Suite 100 > Mt. Shasta, CA 96067 > Phone: (530)926-1489 > FAX: (530)926-6296 > sean@siskiyoutech.com
Yup, two x100p cards. The echo goes away really quickly, but the first second or two is pretty echoey (is that a word?) Sean -----Original Message----- From: Christian Hecimovic [mailto:checimovic@qworks.ca] Sent: Tuesday, January 06, 2004 10:27 AM To: asterisk-users@lists.digium.com Subject: Re: [Asterisk-Users] Echo with polycom phones Hey Sean, Are you using Zap modem cards (X100P)? There can be bad echo with those things. The echo canceling effect you are hearing comes from the Polycom phones - they dynamically "learn" from the echo at the beginning of the call and adjust the echo cancellation accordingly. We are using a Mediatrix SIP gateway now - no echo at all. Christian On Monday 05 January 2004 13:28, Sean Garland wrote:> I have soundpoing ip 500 phones and the first few seconds of every > call has echo, which then goes away. Is there a way to have the echo > cancel on at the beginning? It seems like it is testing at the > beginning but it would be nice if I could have it start closer.... > > Thanks > > Sean Garland > Siskiyou Technology Consultants > 205 N. Mt. Shasta Blvd. Suite 100 > Mt. Shasta, CA 96067 > Phone: (530)926-1489 > FAX: (530)926-6296 > sean@siskiyoutech.com_______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users