SIP注册调研

sequenceDiagram autonumber participant a as 192.168.0.123:55647 participant b as 1.2.3.4:5060 participant c as 172.10.10.3:49543 a->>b: register cseq=1, callId=1 b-->>a: 401 Unauthorized a->>b: register cseq=2, callid=1 b-->>a: 200 a->>b: register cseq=3, callId=1 b-->>a: 401 Unauthorized a->>b: register cseq=4, callid=1 b-->>a: 200 c->>b: register cseq=5, callid=1 b-->>c: 401 Unauthorized c->>b: register cseq=6, callid=1 b-->>c: 500 Service Unavailable c->>b: register cseq=7, callid=2 b-->>c: 401 Unauthorized c->>b: register cseq=8, callid=2 b-->>c: 200 c->>b: register cseq=9, callid=2 b-->>c: 401 Unauthorized c->>b: register cseq=10, callid=2 b-->>c: 200 c->>b: register cseq=11, callid=2 b-->>c: 401 Unauthorized c->>b: register cseq=12, callid=2 b-->>c: 500 Service Unavailable a->>b: register cseq=13, callId=3 b-->>a: 401 Unauthorized a->>b: register cseq=14, callid=3 b-->>a: 200 a->>b: register cseq=15, callId=3 b-->>a: 401 Unauthorized a->>b: register cseq=16, callid=3 b-->>a: 200 a->>b: register cseq=17, callId=3 b-->>a: 401 Unauthorized a->>b: register cseq=18, callid=3 b-->>a: 200 a->>b: register cseq=19, callId=3 b-->>a: 401 Unauthorized a->>b: register cseq=20, callid=3 b-->>a: 200