Method and apparatus for transferring ATM services

Details Method and apparatus for transferring ATM services Method and apparatus for transferring ATM services

2006-03-21

2006-03-21

Ngo, Ricky (Department: 2663)

Multiplex communications

Special services

C370S395100, C370S401000, C370S522000, C379S212010

Reexamination Certificate

active

07016314

ABSTRACT:
A method and apparatus are provided for transferring an ATM call. A first ATM call (124) is established between a first party (120) and a second party (116) and a second ATM call (128) is established between the second party (116) and a third party (118). The first and second ATM calls both include a plurality of segments (124a–d,128a–d) or connections that are coupled to a plurality of ATM switches (208, 210, 212, 214) over ATM facilities to provide virtual connections. The transfer is accomplished by sending a message to the ATM switch over the ATM facility (109) to request the transfer of the first party to the third party. The message identifies the first ATM call and the second ATM call. The switch makes a new connection (220) between the first ATM call and the second ATM call and releases the segments of the first and second ATM calls that connect the ATM switch to the second party. As a result, the first party and the third party are connected for communication.

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International Telecommunication Union, Q.952.7 Series Q: Switching and Signalling Digital Subscriber Signalling System No. 1—Stage 3 Description for Supplemental Services using DSS 1, Jun. 1997.

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