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