H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 4/12 (2009.01) H04W 8/22 (2009.01) H04W 88/02 (2009.01) H04L 12/56 (2006.01)
Patent
CA 2629734
A system and method for indicating when a message recipient is unavailable to receive messages in an instant messaging network, for example, being engaged in telephone communications on the receiving device, where disruption of service is likely or imminent. When notification of an inbound call is received the communications device transmits via the GPRS connection a packet indicating the impending unavailability of the recipient for messages, prior to disruption of the GPRS data stream to establish a GSM connection.
Klassen Gerhard D.
Wormald Chris
Dimock Stratton Llp
Research In Motion Limited
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