ftdm_set_echocancel_call_begin 2409 src/ftdm_io.c  	ftdm_set_echocancel_call_begin(ftdmchan);
ftdm_set_echocancel_call_begin 5513 src/ftdm_io.c  			ftdm_set_echocancel_call_begin(sigmsg->channel);