Method and system for sending a data message to a calling...

Details Method and system for sending a data message to a calling... Method and system for sending a data message to a calling...

2005-02-01

2005-02-01

Eng, George (Department: 2643)

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

C379S093350, C379S207010, C455S567000

Reexamination Certificate

active

06850604

ABSTRACT:
The present invention provides a method and communication system for sending a data message from a called phone to a calling phone while maintaining an active communication between the called phone and a first phone. The calling phone sends a call request to the called phone while the called phone is involved in an active communication with the first phone. The called phone sends a data message to the calling phone in response to the call request. The data message is sent while maintaining an active call with the first phone, so that the first phone is not placed “on hold”.

REFERENCES:
patent: 5680447 (1997-10-01), Diamond et al.
patent: 5764748 (1998-06-01), Rosenthal et al.
patent: 5894504 (1999-04-01), Alfred et al.
patent: 6047057 (2000-04-01), Weishut et al.
patent: 6185433 (2001-02-01), Lele et al.
patent: 6219413 (2001-04-01), Burg
patent: 6404860 (2002-06-01), Casellini
patent: 6418216 (2002-07-01), Harrison et al.

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