VOIP using RF This topic has 0 replies, 1 voice, and was last updated 24 years, 1 month ago by Anand.V. Viewing 1 post (of 1 total) Author Posts 13th December 2000 at 11:26 #19872 Anand.VGuest I have implemented VOIP using RF.But I would need more information about Books on VOIP and any Certification which I can do like CCNA. Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.