protocol on cisco voip gateway ? This topic has 1 reply, 1 voice, and was last updated 19 years ago by Honza Vomacka. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 10th November 2005 at 10:08 #30375 tyroonGuest What protocol is used by default on Cisco gateway when configuring voip without mentioning H.323 or SIP parameters? 13th November 2005 at 22:30 #30376 Honza VomackaGuest H323 Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Voice over IP’ is closed to new topics and replies.