Multiplex communications – Communication over free space – Combining or distributing information via time channels
Reexamination Certificate
2004-09-16
2009-10-06
Sing, Simon (Department: 2614)
Multiplex communications
Communication over free space
Combining or distributing information via time channels
C709S221000, C709S227000, C709S228000, C709S229000
Reexamination Certificate
active
07599347
ABSTRACT:
A communications system includes a Session Initiation Protocol (SIP) user agent. A server communicates with the SIP user agent and allocates an SIP ID for the user agent for subsequent communications using SIP. A database can be associated with the server and contain data relating to free SIP ID's that can be allocated to the SIP user agent and allocated SIP ID's.
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Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
King Simon
Research In Motion Limited
Sing Simon
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