I have a Digium TDM411p (one fxo and one fxs). On the fxs is an Siemens
cordless. I also have a couple of Cisco 7960Gs that I have converted to SIP
(firmware 3.7.5). The PC is a 933 with 512 mb. I am running fxotune for the
TDM400. This is a 2.4 kernel and I am at Zaptel 1.2.7 and Asterisk 1.2.10

 

SIP to SIP good

FXS to FXO good

FXS to SIP good

SIP to FXO ECHOooo

 

I have been playing with the echocancel (now at 256 taps) and the
echotraining (at 1400), echocancelwhenbridged is no. I have also switched to
MARK2 ECHO CAN and added Aggressive suppressor. I would describe this echo
as not quite good enough. Better than before 70 or 80 test calls, but I
would like it a little better.

 

How do I remove the last of the echo, or is it possible? Does anybody have
clean SIP on a TDM400

 

Do I scrap the SIP phones? 

Is there a better echo cancel than Mark2?

 

 

Kevin Vieyra

[EMAIL PROTECTED]

 

 

 

 

 

 

 

 

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