H.323 .v. SIP This topic has 0 replies, 1 voice, and was last updated 23 years, 1 month ago by Chris Taylor. Viewing 1 post (of 1 total) Author Posts 16th October 2000 at 11:32 #19824 Chris TaylorGuest Hello, Does anyone have any information which compares H323 with SIP? I am interested in which system is the best to use and which is becoming supported by vendors. Is there a de-facto standard emerging? Thanks. Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.