March 2006
Intermediate to advanced
464 pages
12h 16m
English
book
The IMS: IP Multimedia Concepts And Services, Second Edition
by Miikka Poikselka, Georg Mayer, Hisham Khartabil, Aki Niemi
Content preview from The IMS: IP Multimedia Concepts And Services, Second Edition
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10.2. Signalling PDP context establishment
Before Tobias's UE can start the IMS registration procedure, it needs to establish an IP connection with the network. In the case of GPRS such an IP connection is provided by either a dedicated signalling PDP context or a general purpose PDP context. The concepts and procedures for PDP context establishment and usage are described in Section 3.9 and Chapter 17.
In this example it is assumed that Tobias's UE establishes a dedicated signalling PDP context with the GGSN in Finland. After the UE has established the signalling PDP context, it will be able to send SIP signalling over the air interface.
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