Download or read book IP Telephony Demystified written by Ken Camp and published by McGraw Hill Professional. This book was released on 2002-11-13 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is designed to demystify IP telephony for business people and technology generalists. It discusses: IP protocol breakdown -SIP, H.323, Megaco/H.248; quality of service - IntServ, DiffServ, and MPLS; integrating voice into a LAN data environment; and cost and service implications.