SESSION INITIATION PROTOCOL (SIP) BASED USER INITIATED HANDOFF
First Claim
Patent Images
1. A communication device comprising:
- circuitry configured to;
generate a first message associated with an email address of a user of a remote device; and
transmit the first message over a communication network to establish a communication session with the remote device.
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Abstract
Method and apparatus for providing a solution to the handoff problem includes negotiation of new media codes (coders/decoders) for utilization in cases where the two devices involved in the handoff are incompatible. Although mobile IP (MIP) is presently utilized to perform handoff procedures, this technique lacks a trigger mechanism to initiate handoff between two different devices which communicate with two different networks or one common network. In addition, MIP does not address the issue of compatibilities between media types, codes and supported bit rate. The handoff utilizes a session protocol (SIP) message for handoff.
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Citations
18 Claims
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1. A communication device comprising:
circuitry configured to; generate a first message associated with an email address of a user of a remote device; and transmit the first message over a communication network to establish a communication session with the remote device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for use in a communication device for establishing a communication session with a remote device, the method comprising:
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generating a first message associated with an email address of a user of the remote device; and transmitting the first message over a communication network to establish a communication session with the remote device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification