voip This topic has 0 replies, 1 voice, and was last updated 21 years, 9 months ago by sumesh. Viewing 1 post (of 1 total) Author Posts 31st December 2001 at 12:36 #21019 sumeshGuest Hi i am cisco certied professional. I would like to learn more about cisoc voip configurations etc. can anyone guide me to the proper book and available resources. Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.