Apparatus and method of transmitting call information prior to establishing a connection path
First Claim
1. A method of transmitting call information prior to establishing a connection path, comprising the steps of:
- creating a route setup cell for specific call information corresponding to traffic of a single call;
transmitting the route setup cell to an intermediary destination in order to establish a link in a connection path for the specific call information;
transmitting the specific call information to the intermediary destination along the link of the connection path immediately after said route setup cell transmitting step and prior to receiving an indication from the intermediary destination that the link in the connection path has been established.
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Accused Products
Abstract
Call information is transmitted between broadband switching modules (12) and a broadband services switch (10). Each broadband switching module (12) receives call information from outside the broadband services switch (10) and translates the information into asynchronous transfer mode (ATM) cells. Each broadband switching module (12) also generates a route setup cell and a route teardown cell in order to establish and release a connection path to another broadband switching module (12), respectively. The broadband switching module (12) sends the route setup cell, that includes a virtual circuit identifier identifying the connection path for the calling information ATM cells, along a dedicated VCI to an intermediary broadband switching module (12). The sending broadband switching module (12) then transmits the payload ATM cells containing the calling information immediately after transmitting the route setup cell and before receiving an indication that a connection path has been established. The payload ATM cells are transmitted along a payload VCI determined by the broadband switching module (12) which was placed within the route setup cell.
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Citations
17 Claims
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1. A method of transmitting call information prior to establishing a connection path, comprising the steps of:
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creating a route setup cell for specific call information corresponding to traffic of a single call; transmitting the route setup cell to an intermediary destination in order to establish a link in a connection path for the specific call information; transmitting the specific call information to the intermediary destination along the link of the connection path immediately after said route setup cell transmitting step and prior to receiving an indication from the intermediary destination that the link in the connection path has been established. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for transmitting call information prior to establishing a connection path, comprising:
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circuitry for creating a route setup cell for specific call information corresponding to traffic for a single call, said specific call information being partitioned into a plurality of asynchronous transfer mode cells, said route setup cell created in asynchronous transfer cell format according to destination information within said asynchronous transfer mode cells; circuitry for transmitting said route setup cell to an intermediary destination on a first signalling channel in order to establish a link in a connection path for said asynchronous transfer mode cells; circuitry for successively transmitting said asynchronous transfer mode cells on a second signalling channel to said intermediary destination along said link of said connection path immediately following transmission of said route setup cell and prior to receiving an indication from said intermediary destination that said link of said connection path has been established; circuitry for creating a route teardown cell corresponding to said specific call information; and circuitry for transmitting said route teardown cell to said intermediary destination on said first signalling channel immediately after completing transmission of said asynchronous transfer mode cells in order to indicate that resources used to establish said link in said connection path are now available for reuse. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification