Leo Ann Boon wrote:
3. It seems to be only incoming calls that have an echo and only on the
inside, the outside never hears one, what does this mean?
Why don't you record the call at asterisk? Leave the zaptel settings as
default, i.e. standard echo cancel and rxgain=txgain=0. Don't use
MixMonitor, just leave everything as in and out. It will help you
isolate whether it's PSTN echo. If you don't hear any echo in the
recording, then the problem is most likely your phone.
*sigh* Any time a call hits an analog 2-wire circuit there will be
echo. In normal PSTN only situations the echo is so FAST that you do
not hear it. It is only where there is a high latency path in the
circuit like a VOIP phone where you will hear the echo.
Recording the call on Asterisk will not let you hear the echo because
there is no high latency portion of the circuit.
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