Zte zxmsg 5200, Technical Manual

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Chapter 5 - Software Structure
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transaction processing module; or receive the internal H.248 information
provided by the transaction processing module of MG, and transform the
information into the megao information, and then send them to IP
subsystem for MGC.
Transaction processing module (Transaction): Serves to receive H.248
transactions sent from the CD_Code, and execute transaction commands
in order, and then submit commands to the semantics construe module for
execution; or receive transaction sending requests from the semantics
construe module, ensuring that the commands are sent to MGC
successfully. At-Most-Once and Three-way Handshake are included.
Semantics construe module (Construe): Serves to construe the commands
provided by Transaction and transform the commands into MG service
operations or database subsystem resource requests; construe operation
results or requests by MG OM subsystem or service subsystem into H.248
commands, which will be provided to Transaction to MGC.