32 lines
750 B
Plaintext
32 lines
750 B
Plaintext
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Some simple notes on SIP
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- SIPGrammar parses and Request/Response
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- SIPRequest is base to requests
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- SIPResponse is the response class
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- SIPDialog holds state of a dialogue
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- to/from/to tag/from tag...
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- call id... maybe SDP...
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- SIPTransport is base class for the transport
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- SIPUdpTransport sends and listens on UDP
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- SIPUserAgent
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- Holds a SIPTransport
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- Generates various ids and fills requests
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- Will dispatch response to the transaction
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- SIPTransactionBase is the base for transactions
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- SIPInviteTransaction is to create a call
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Timeouts/Retransmission:
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- good question, next question.. not solved yet
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Limitations:
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- Multiple Via's are not supported
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- No retranmission, no response parsing..
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