System and method for allocating session initiation protocol...

Multiplex communications – Communication over free space – Combining or distributing information via time channels

Reexamination Certificate

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Details

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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Rosenberg, J., et al., “URI Leasing in the Session Initiation Protocol (SIP) draft-rosenberg-sipping-lease-00,” Internet Draft, Feb. 12, 2003, pp. 1-23.
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