IP communication in a cellular telecommunications system

Details IP communication in a cellular telecommunications system IP communication in a cellular telecommunications system

2007-03-20

2007-03-20

Rao, Seema S. (Department: 2616)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S401000, C370S338000, C709S228000

Reexamination Certificate

active

10239019

ABSTRACT:
A method of alerting a mobile wireless subscriber (11) registered with a mobile wireless communication network (1) to a session initiation request sent by a calling party (7). The method comprises receiving a SIP Invite message at a Home SIP server (8) of the mobile network (1), the SIP Invite message containing a SIP URL identifying said mobile subscriber (11). Using the SIP URL, the identity of a ACP (3) with which the mobile subscriber (11) is currently registered is identified and a paging message broadcast to said mobile subscriber (11) from said ACP (3).

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