[asterisk-users] SIP to IAX2 with delayed echo

Drew Gibson drew at oanda.com
Thu Nov 20 13:30:11 CST 2008

c james wrote:
> A Polycom 550 and a IAX client (Mozphone and ZoIPer were used) are
> having a conversation.  Call quality is reported as good except for an
> echo with a 3 second delay.
> Most of my searches are saying echo happens only on the PSTN piece, but
> there isn't one here.

Which end hears the echo?

If it is the Polycom end, try a better quality headset with the softphone.
Echo comes from analogue portions of the "circuit" and is usually caused 
at the end that doesn't hear it.



Drew Gibson

Systems Administrator
OANDA Corporation

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