Wireless mid-call transfers

Details Wireless mid-call transfers Wireless mid-call transfers

2006-04-04

2006-04-04

Smith, Creighton (Department: 2645)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S435100, C370S338000

Reexamination Certificate

active

07024197

ABSTRACT:
A method of transferring a call established between a first communications device and a second communications device from the second communications device to a third communications device. The method includes negotiating media description between the first communications device and the third communications device to establish a transferred call capable of handling media which can be different than that handled by the original call.

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patent: 6345184 (2002-02-01), van der Salm et al.
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patent: 6725058 (2004-04-01), Rinne et al.
patent: 6745029 (2004-06-01), Lahtinen
patent: 2001/0031635 (2001-10-01), Bharatia
patent: 2002/0115441 (2002-08-01), Alonso et al.
patent: 2003/0162544 (2003-08-01), Austin et al.

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