CISCO IP PHONE 30 VIP – Skinny This topic has 1 reply, 1 voice, and was last updated 21 years ago by Yes. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 25th October 2002 at 14:57 #22298 ChrisGuest Can anyone please tell me if the above phones are compatiable with the “skinny” protocol? Many thanks Chris 24th November 2002 at 01:38 #22299 YesGuest Yes:Depends on the version of your cm. They arent supported by cisco anymore but it is an SCCP device, but I believe it may have changed a little since the VIP 30 phones. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Voice over IP’ is closed to new topics and replies.