Samsung Ubigate iBG2016 Configuration Manual page 404

CHAPTER 3. SIP Gateway Management
No.
14 200 OK
15 Connect
16 Connect ACK
17 ACK
18 Connect ACK
19 Disconnect
20 BYE
21 Disconnect
22 Release
23 Release
24 200 OK
25 Release Complete
26 Release Complete
350
Table 28.2 Call via Redirect Server (Continued)
Message
SIP Gateway 2 sends 200 OK to SIP Gateway 1. 200
OK indicates that a session was formed normally
between SIP Gateway2 and SIP Gateway1. 200 OK
includes the media capability of SIP Gateway2.
Upon receiving 200 Ok, SIP Gateway 1 sends
Connect to PBX A.
SIP Gateway 1 receives Connect ACK from PBX A.
SIP Gateway 2 sends ACK request to SIP Gateway2.
ACK request indicates that SIP Gateway 1 received
200 OK response normally.
SIP Gateway 2 sends Connect ACK from PBX B.
If a subscriber hangs up the phone, SIP Gateway 2
receives Disconnect from PBX B.
SIP Gateway 2 sends BYE request to SIP Gateway1.
BYE request indicates the end of a session.
Upon receiving BYE, SIP Gateway2 sends
Disconnect to PBX A.
Sends a Release in regard to Disconnect.
Receives a Release in regard to Disconnect.
SIP Gateway 1 sends 200 OK to SIP Gateway 2. 200
OK indicates that a session was terminated normally
by BYE request.
Receives Release Complete in regard to Release.
Sends Release Complete in regard to Release.
Description
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