Wireless mid-call transfers
AssigneeLucent Technologies Inc.
InventorsCharu Verma, Mariana Benitez Pelaez
Life of this patent
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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.
Claims16
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 comprising negotiating media description bearer attributes between the first communications device and the third communications device.
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 comprising:
- initiating a mid-call transfer operation to signal initiation of the transfer;
- establishing a new call leg between the first communications device and the third communications device;
- negotiating media description between the first communications device and the third communications device;
- communicating an indication to the second communications device that the call is going to be transferred;
- transferring the call from the second communications device to the third communications device;
- and
- releasing the call leg between the first communications device and the second communications device.
A method of transferring a call established between a first communications device and a second communications device, the second communications device incapable of receiving and transmitting data, from the second communications device to a third communications device capable of receiving and transmitting data comprising:
- initiating a mid-call transfer operation to signal initiation of the transfer;
- establishing a new call leg between the first communications device and the third communications device;
- negotiating media description between the first communications device and the third communications device to establish data handling capabilities in the new call leg;
- communicating an indication to the second communications device that the call is going to be transferred;
- transferring the call from the second communications device to the third communications device;
- and
- releasing the call leg between the first communications device and the second communications device.
Dependencies are inferred from the claim text.