A method and apparatus for handling a Session Initiation Protocol message in a
communications network. When a network node receives a Session Initiation Protocol …

A method and apparatus for handling a Session Initiation Protocol message in a
communications network. When a network node receives a Session Initiation Protocol …

BACKGROUND 0002 The Session Initiation Protocol (SIP) is a signaling protocol used for
initiation and control of network user sessions. In some cases, the user sessions will involve …

A method and communications network node for allocating a priority level to an Internet
Protocol (IP) packet containing all or part of a Session Initiation Protocol (SIP) message. One …

BACKGROUND Enterprise and Service Provider Voice over Internet Proto col (VoIP)
deployments increasingly use an application-layer control protocol, Session Initiation …

A method and apparatus for transmitting data packets between a client and a server
comprising, a network node receiving a data packet from a client; determining whether an …

An apparatus for providing a session initiation protocol (SIP) service comprises: a gateway
installed in a boundary between a private network and a public network, the gate way …

A method and apparatus for providing a communication history of a terminal in a Session
Initiation Protocol/Internet Protocol (SIP/IP) core network. When a user having a plurality of …

Methods for re-anchoring a transport layer session in a communication network are
disclosed. For example, a method receives a request to re-anchor a transport layer session …

In accordance with at least one embodiment of the present invention, a communication
apparatus includes a communication unit configured to send and receive messages on a …