[asterisk-users] Problem with Cisco Phones

Jordan Cook - Gyron Networks jordan.cook at gyron.net
Thu Jan 22 04:31:10 CST 2015

> Apparently this is a known problem past v8 firmware:
> http://kaa.kiev.ua/blog/asterisk-and-cisco-7945g-after-sip-firmware-update-
> version-9/

I've done some more playing about and what I've noticed is that even when using TCP SIP on the 8.x Firmware conferencing doesn’t work - making it use UDP fixes this.

So has anyone managed to get the 9.x firmware working with UDP? Possibly worth a try to see if this resolves the issue?

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