question on ip address This topic has 0 replies, 1 voice, and was last updated 17 years, 3 months ago by kiran. Viewing 1 post (of 1 total) Author Posts 7th August 2007 at 09:37 #31514 kiranGuest We have a globally unique MAC address, but why do we need the ip address to communicate? why cant we use MAC address? Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.