V5.1 signalling protocol This topic has 1 reply, 1 voice, and was last updated 17 years, 4 months ago by kaluwe moonde. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 28th July 2005 at 14:15 #29831 IvanGuest Hello All. I need to source code V5.1 signalling protocol. Please help me! 25th June 2007 at 21:17 #29832 kaluwe moondeGuest Hello, I need information on V5 signalling system. Anything from an overview to detailed information. Thanks in advance. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Voice over IP’ is closed to new topics and replies.