[Asterisk-Users] Echo problem on conferencing....no analog interfaces

[David Gomillion]

Silly question: what kind of phone was the person in California calling on?
Some phones give a local "echo" while you talk.  If that happens, then I
could see it causing problems...

Just a thought... I hope it helps!

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Tom Lowe
Sent: Wednesday, December 03, 2003 6:24 PM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] Echo problem on conferencing....no analog
interfaces

Okay...here's one for all of you....

3 party meet-me conference:

Call 1:  Comes in to MyAsterisk on an E1 PRI into the system.  All TDM,
no VoIP at all involved.  No echo at all.
Call 2:  Call comes in via IAX....(TDM -> Asterisk_1 -> IAX/GSM ->
MyAsterisk.  Caller immediately hears his own echo
Call 3:  Call comes in via IAX....(TDM -> Asterisk_1 -> IAX/GSM ->
MyAsterisk.  Caller hears no echo at all.

(Caller 2 and 3 called the same telephone number....caller 2 is in the
same state (NJ) and caller 3 is in California)
Caller 2 hung up and called back in....still hears echo.

Any ideas?

Are there any settings that anyone can suggest to try?

Tom
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