ISDN codeset conversion
First Claim
1. In a communication system in which ISDN messages are communicated via ISDN communication links between a first communication switching system and a plurality of other communication systems, a method for use in said first communication switching system comprising the steps of:
- storing information identifying those of said communication links that connect to communication systems which process messages using a different set of ISDN codepoint and codeset identifiers than the particular set by which messages are processed by said first communication switching systems;
receiving an ISDN message from an individual one of said other communication systems;
determining from the stored information and as a function of the identity of the communication link over which said message was received whether said message uses a set of identifiers different from said particular one set and, if said messages does; and
converting said message to a form in which said particular one set is used.
10 Assignments
0 Petitions
Accused Products
Abstract
In a telecommunication switching system, an apparatus for automatically converting ISDN codeset and codepoint protocol in messages transmitted to the telecommunication switching system from a plurality of other telecommunication switching systems each using a diffrent ISDN codeset and codepoint protcol than the telecommunication switching system to identify the same data information. All telecommunication switching systems are interconnected by data channels. Further, the apparatus is responsive to another ISDN message generated by the telecommunications switching system for transmission to another one of the plurality of telecommunication switching systems to convert the codeset and codepoint protocol of the other message to the codepoint and codeset protocol of the other one of the plurality of telecommunication switching systems. The conversions are performed by using sets of conversion tables each identified with an ISDN data channel, and the identity of the data channel is used to select which set of tables is to be used to convert a codeset and codepoint protocol.
32 Citations
10 Claims
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1. In a communication system in which ISDN messages are communicated via ISDN communication links between a first communication switching system and a plurality of other communication systems, a method for use in said first communication switching system comprising the steps of:
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storing information identifying those of said communication links that connect to communication systems which process messages using a different set of ISDN codepoint and codeset identifiers than the particular set by which messages are processed by said first communication switching systems; receiving an ISDN message from an individual one of said other communication systems; determining from the stored information and as a function of the identity of the communication link over which said message was received whether said message uses a set of identifiers different from said particular one set and, if said messages does; and converting said message to a form in which said particular one set is used. - View Dependent Claims (2, 3, 4, 5)
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6. In a communication system in which ISDN messages are communicated via ISDN communication links between a first communication switching system and a plurality of other communication systems, an apparatus in said first communication switching system comprising:
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means for storing information identifying those of said communication links that connect to communication systems which process messages using a different set of ISDN codepoint and codeset identifiers than the particular set by which messages are processed by said first communication switching systems; means for receiving an ISDN message from an individual one of said other communication systems; means for determining from the stored information and as a function of the identity of the communication link over which said message was received whether said message uses a set of identifiers different from said particular one set and, if said messages does; and means for converting said message to a form in which said particular one set is used. - View Dependent Claims (7, 8, 9, 10)
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Specification