On Feb 26, 2006, at 5:37 AM, Wooi Koay wrote:

I have a POTS and a sip incoming into my asterisk server.  When I call
the POTS number from outside (cell or landline) and trying to
authenticate myself when enter #, 8 out of 10 times I got an
authentication incorrect.  If I call in to the sip incoming line, 10
out of 10 times the authentication process passes.
Could be a simple volume issue with the tones coming in from PSTN? Also, if you are using inband tones, you need to use either ulaw or alaw codecs to get workable DTMF recognition.


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