Telos VX - Telephony Discussion and Voip News Sites; SIP Information and Suggested Reading; Books

66 | Section 5
Telephony Discussion and VoIP news sites
www.sipforum.org
www.telos-systems.com
www.voipforums.com/
www.voipuser.org/forum_index.html
www.broadbandreports.com/forum/voip
forum.voxilla.com/
SIP Information and suggested reading
A Request for Comments (RFC) is a memorandum published by the Internet Engineering Task
Force (IETF) describing methods, behaviors, research, or innovations applicable to the work-
ing of the Internet and Internet-connected systems. The IETF adopts some of the proposals
published as RFCs as Internet standards. These are available at: www.ietf.org/rfc. Among those
relevant to VoIP and SIP are:
RFC 1889: Real Time Protocol (RTP) - original version
RFC 3550 - Real Time Protocol (RTP) - latest version
RFC 1890: Real Time Protocol Audio Video Profiles (RTP/AVP) - original version
RFC 3551: Real Time Protocol Audio Video Profiles (RTP/AVP) - latest version
RFC 2327: Session Description Protocol (SDP) - original version
RFC 4566 - Session Description Protocol (SDP) - latest version
RFC 2543: Session Initiation Protocol (SIP) – original version
RFC 3261: Session Initiation Protocol (SIP) – latest version
RFC 3264: Codec negotiation
A. H. Inglis. “Transmission Features of the New Telephone Sets,” Bell System Technical
Journal 17 (1938): 358-380. (Just for fun. Waaay back, Mr. Inglis proposed “high-fidelity”
phones, noting that cost was the only barrier to better audio quality in the telephone network
and predicting it would become common in the future. Took awhile…)
Books
Henry Sinnreich and Alan B. Johnston. Internet Communications Using SIP, John Wiley &
Sons, Inc., New York, 2001.
Gonzalo Camarillo. SIP Demystified, McGraw-Hill, New York, 2002.
Steve Church and Skip Pizzi. Audio over IP: Building Pro AoIP systems with Livewire, Focal
Press, Burlington,MA and Oxford UK. 2010 (Mighty fine fellas, these guys. Good book, too!)
Jonathan Davidson and James Peters. Voice over IP Fundamentals, Cisco Press, Indianapolis,
2000.
J. Alexander, C. Pearce, A. Smith, and D. Whetten, Cisco Call Manager Fundamentals 2nd
Edition, Cisco Press, Indianapolis, 2006.