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Can Cisco IP phone 7911G work with third party pbx

I am trying to use use a third party pbx (Specifically, Matric Ethernity PE) as a stop gap for a company after their cisco call manager got burnt by lightning. I have installed SIP firmware on the testing cisco IP phone 7911g but all effort to get it to work has failed.

Please does anyone have experince with using this phone with a third party pbx and what I need to do to get it working.

 

Meanwhile I edited the XMLDefault.cnf.xml file to contain the parameters for the pbx box and at one time I was able to get the 8.4.4 sip firmware to register but still getting no tone on the phone.

 

Thanks

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1 REPLY
Cisco Employee

Hi,7912 does support SIP but

Hi,

7911 does support SIP but there are no proper steps documented for using it with any third party PBX. Please check the following post

https://supportforums.cisco.com/discussion/11032816/ip-7965-sip-protocol

HTH

Manish

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