H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 29/02 (2006.01) H04L 29/06 (2006.01) H04M 11/06 (2006.01)
Patent
CA 2094406
A method and system are disclosed for controlling multiple communication sessions while utilizing a modem coupled to a single communication port. A stream of data is coupled to a modem having a data transfer mode and a command mode while that modem is operating in the data transfer mode in a first communication session. A preselected escape character followed by a selected command sequence is inserted into the data stream and is detected and utilized by the modern to automatically initiate a second communication session by specifying the network, node, application, service level and the likefor the second communication session. Thereafter, selected data within the data stream may be preceded by the preselected escape character and a session identification command sequence and thereby accurately identified as associated with a particular communication session, without requiring the data processing terminal application to have knowledge of data packet protocols and formats. In this manner, a single modem coupled to a single communication port within a data processing terminal may be utilized to support multiple communication sessions without adding to the processing overhead within each application supported.
Jenness Robert Vincent
Maguire Sandra Arlene
Moore Victor Stuart
Wu David C.
International Business Machines Corporation
Rosen Arnold
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