I just bought a Cisco 7942 phone to connect to my asterisk PBX. I have installed the latest SIP firmware, and put together a SEP<MAC>.cnf.xml. I'm able to make phone calls at this point. When I try to use the keypad to select options on a remote call system, it doesn't work. On most phones, I'm able to set the DTMF mode to be rfc2833 compliant and it works fine, however there seems to be a lack of documentation on the possible settings that can go in the SEP<MAC>.cnf.xml files.
My SEP<MAC>.cnf.xml file and sip.conf file for asterisk are below. Two questions:
1) Where can I go for details on SEP<MAC>.cnf.xml files (and the other needed files). The asterisk and web pages I've seen don't seem to fully understand what all the settings do, so a good document to configure the phone would be great.
2) What are the correct DTMF settings that I should be using for this?
3) Any other suggestions for my configuration? Security wise, sanity wise, etc.
SIP firmware are designed and tested to interoperate with Cisco call control only. Although SIP firmware is IETF RFC 3261 compliant, it is not supported by Cisco TAC or Engineering for use with non-Cisco call control systems.
That is why you will not find any document which will have details of integration of Cisco IP phone with 3rd party PBX.
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