Echo Cancellation using SIP

Echo Cancelation I have a sip trunk and I am using asterisk with pjsip when users connect from cell or land lines, I am getting an echo. Can this be addressed through asterisk?, these are all sip calls.

I’m pretty sure this isn’t supported, as it is the wrong place to implement it; it should be done before delays are introduced. I suspect VOX, in the phone, is about the only option, if you can’t change the circuit switched to RTP boundary supplier.

VOX is echo suppression, not cancellation


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