| 摘要 |
A method for a remote communication system to perform a startup session to establish a communication between the remote communication system and a central communication system. The remote communication system initiates a startup procedure by transmitting a R-TONES-REQ signal to the central communication system. Upon detecting a C-TONES signal, which is issued by the central communication system in response to the transmitted R-TONES-REQ signal, the remote communication system transmits a R-TONE1 signal to the central communication system. Upon detecting a C-GALF1 signal, which is issued by the central communication system in response to the transmitted R-TONE1 signal, the remote communication system transmits a R-FLAG1 signal to the central communication system. Thereafter, the remote communication system establishes a communication session in response to detecting a C-FLAG1 signal issued by the central communication system in response to the R-FLAG1 signal.
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