Methods and systems for delivering presence information regarding push-to-talk subscribers
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United States of America Patent
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Dec 5, 2006
Issued Date -
N/A
app pub date -
Mar 11, 2004
filing date -
Mar 11, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods and system for delivering presence information regarding push-to-talk subscribers are disclosed. In one method, a short message gateway receives presence information from a first push-to-talk subscriber from a presence or push-to-talk server. The short message gateway determines the location and availability of a second push-to-talk subscriber to which the presence information is directed. If the second push-to-talk subscriber is available, the SMS gateway delivers the presence information to the second push-to-talk subscriber in a manner that bypasses the SMSC. If the SMS gateway determines that the second push-to-talk subscriber is not available, the SMS gateway discards the presence information.
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