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A method for signalling a request to establish a communication link, method for setting up a communication link, communication connection structure - control unit, communication devices and computer program elements
A method for signalling a request to establish a communication link, method for setting up a communication link, communication connection structure - control unit, communication devices and computer program elements
A method for signalling a request to establish a single communication link,• a first signaling message is generated (502) to establish the communication connection according to a first communication connection - type,• a second signaling message is generated (503) for building up the communication connection according to a second communication connection - type, wherein the second communication connection - type, a different communication connection - type than the first communication connection - type,• the first signaling message and the second signaling message is sent to a communication appliance (504, 505), with which the communication connection is to be set up and• wherein, in the first signalling an indication is inserted, with which indicates whether a second signaling message is generated and is sent to the communication appliance and / or wherein in the second signaling message an indication is inserted, with which indicates whether a first signaling message has been generated and sent to the communication appliance has been.
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