Purpose and Contents
It is quite easy to get lost in the jungle/maze of SIP/VoIP and IMS specifications.
The enabler protocols of these technologies
(e.g. SIP, RTP, DNS, Diameter) are the subject of numerous
specifications that have been produced by different standard
organizations such as IETF, 3GPP, 3GPP2, TISPAN and others. It can be
difficult to locate the right document, or even to
determine the set of specs about these protocols.
Don't Panic! This book serves as a guide to the SIP/IMS specs. It lists
the specifications under the SIP/IMS umbrella, briefly summarizes each,
and groups them into categories.
Technical/marketing people who
need to find their way in the maze of
SIP/IMS standard specifications.
No prior knowledge is assumed.
The SIP/VoIP/IMS standard bodies are introduced; as well
as the way they relate to each other. Scope and key IMS topics of the current
3GPP release (R11) are also listed. Then ALL of the SIP and IMS key specs
(231 as of 7/2012) are listed, briefly summarized and
grouped into categories
(e.g. Security, Identity and profile, Accounting/Charging etc).