Patent ID: 7623492

Claim:
A method comprising: establishing, at a node located between a first apparatus and a second apparatus, a first packet flow over a network between said first apparatus and said second apparatus, wherein said node has a first packet filter comprising an identifier and specifying said second apparatus as a first end point; interposing a remote data connection end point between said node and said second apparatus, wherein said remote data connection end point comprises a media gateway; sending a session initiation protocol (SIP) Re-Invite message from a Handoff Function/SIP Proxy associated with said media gateway to said first apparatus via said node; in response to receiving a first message from said first apparatus, adding a second packet filter at said node comprising said identifier and specifying said remote data connection end point as a second end point; establishing a second packet flow between said first apparatus and said second apparatus via said node and via said remote data connection end point; and in response to receiving a second message from said first apparatus, removing said first packet filter, wherein said second message is sent in response to said first apparatus receiving a communication via said second packet flow.