The strange thing here is that asterisk is not removing the echo. I did notice that the 0.7.1 tar did not do the echo cancel very well and Mark suggested that I go back to the CVS, which did wonders. You might also verify that echo cancellation is actually turned on. Enter "zap show channel x" at the CLI, where x is one of your defined zap channels. If it's enabled, somewhere in the output you should see "Echo Cancellation: xx taps, Currently On/Off". The On/Off will change from Off to On when a call is bridged. If it is not enabled, check the definitions in zapata and in your make file.
I have checked my zapata.conf file and fiddled with the settings so far I cannot get echocancel to work. Although I don't have echo problem now.
[channels] ; language=en context=incoming amaflags=default cancallforward = yes callwaiting = no busydetect = no callprogress = no musiconhold = default rxgain=0.0 txgain=0.0 immediate=no echocancel = yes echocancelwhenbridged = yes echotraining = yes usecallerid = yes threewaycalling = yes callwaitingcallerid = yes callerid = asreceived signalling = fxs_ks callreturn = yes channel = 1
At the console, the output for show channel is : Channel: 1 File Descriptor: 19 Span: 1 Extension: Context: incoming Caller ID string: Destroy: 0 Signalling Type: FXS Kewlstart Owner: <None> Real: <None> Callwait: <None> Threeway: <None> Confno: -1 Propagated Conference: -1 Real in conference: 0 DSP: no Relax DTMF: no Dialing/CallwaitCAS: 0/0 Default law: ulaw Fax Handled: no Pulse phone: no Echo Cancellation: 128 taps, currently OFF Actual Confinfo: Num/0, Mode/0x0000 Actual Confmute: No
I have a look at the Makefile in zapata directory and do not see anything needs to be tweak.
David Kwok
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