Method for push-to-talk pre-emption

Details Method for push-to-talk pre-emption Method for push-to-talk pre-emption

2011-06-21

2011-06-21

Ferguson, Keith T (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S519000, C455S500000, C455S517000, C455S512000, C455S426100, C370S260000, C370S261000, C370S262000, C370S310000, C370S312000

Reexamination Certificate

active

07966029

ABSTRACT:
Push-to-talk private call pre-emption may be applied in an application-to-person context or on a person-to-person context. A PTT subscriber may send a PTT server a pre-emption request indicating a desire to interrupt the application voice stream or another PTT subscriber, respectively. In an application-to-person context, the PTT server may revoke the floor from the application server and grant the floor to the requesting device. In a person-to-person context, the PTT server may send the other PTT subscriber a floor release request. Once the subscriber with the PTT floor releases it in response to the floor release request, the PTT server will be able to send an open floor signal back to the requesting subscriber.

REFERENCES:
patent: 2003/0100326 (2003-05-01), Grube et al.
patent: 2007/0019595 (2007-01-01), Huh et al.
patent: 2007/0155415 (2007-07-01), Sheehy et al.
patent: 2010/0056077 (2010-03-01), Seshadri et al.

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