I have been trying to get the 7970 (running SIP firmware) to display presence
information about other extensions. Thus far, I have been unsuccessful. Does
anyone have BLF working on the SIP-loaded 7941/7961/7970/7971? I have been
using the following as a guide for my work:
http://www.voip-info.org/wiki/view/Asterisk+Presence+for+Cisco+79x1+Phones
I have successfully implemented every step (although there are a few minor
errors in the code on that page that I have corrected) except for the part
where the 7970 has to connect to Asterisk via SIP/TCP. I have chan_sip.c
patched with the SIP/TCP patch to allow for connectivity, but I cannot seem to
force the 7970 to connect that way.
I have read several posts that indicated that the SIP firmware does not support
presence information as of yet, but supposedly, whoever wrote that article
above has it working somehow.
Does anyone know how to make the phone connect over TCP? Or, better yet, does
anyone have a working method that they would be willing to share? These are
great phones but in the environment that we're in they are almost useless if we
don't know who's on a call when. I'd rather not go the SCCP route unless I
absolutely have to.
Thanks!
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