Comments on: Cisco 7961G SIP is buggy

By: Patrick

Patrick — Wed, 16 Jun 2010 18:49:07 +0000

@kitten: could not agree more. With phones like Polycom SoundTouch IP670, Aastra 57i & 6739i and Snom 870 who needs Cisco. Throw in FreeSWITCH or even Asterisk and who needs CCM.

By: Patrick

Patrick — Wed, 16 Jun 2010 18:45:46 +0000

@road legal buggies: sorry no. I will probably in the next couple of weeks as I will be setting up a new FreeSWITCH test box with a Sangoma BRI card and a couple of phones including a Cisco 7961G. All I can recommend is to try out different firmware versions. But don’t get your hopes up too high. You can also setup Asterisk with chan_sccp (search Google for the latest version. Might be called chan-skinny-b) or try FreeSWITCH with mod_skinny and then put SCCP firmware on the 7961G.

By: road legal buggies

road legal buggies — Wed, 16 Jun 2010 08:54:52 +0000

Have you got anymore information about this because i’ve been looking everywhere for it.

By: kitten

kitten — Wed, 25 Feb 2009 19:58:52 +0000

Every one of Cisco’s SIP releases comes with release notes containing open caveats which, to my mind, are serious show-stoppers, yet while the release notes acknowledge the open issues they provide no workarounds. I think it’s been clear for a long, long time that Cisco offers SIP firmware only grudgingly and has no interest in supporting it.

I have, in three years in this industry, never seen a Cisco 79xx phone operate in a fully RFC compliant manner. I don’t know how well they work with Callmanager, but in a SIP environment, the best I can describe them is “a sad joke”, and anyone considering a SIP service should steer well clear of Cisco phones — of any model.

By: Francisco Sedano

Francisco Sedano — Wed, 01 Oct 2008 18:30:18 +0000

Hello.

That Cisco IP phone is not meant to be used without CallManager. For a Cisco SIP phone you can use without CallManager, you can use 7960.

By the way, CallManager uses either SCCP or SIP for talking to Cisco phones.