Nortel Networks Confidential |
| Appendix A: Basic call flows 101 | ||||
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Figure 2 |
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| User A: |
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| User B: |
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| UserA@site1.domain1 |
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| UserB@site1.domain1 |
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| (site code+station code) |
| SIP |
| (site code+station code) |
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| Pubic: |
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| Pubic: |
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| Application |
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| Client A | Module | Client B | |||
1.Invite sip:userB@domain1 To: userB@domain1 From: userA@domain1
SDP A
1. Invite sip:userB@domain1 To: userB@domain1 From: userA@domain1
SDP A
2. 180 SDP B
2. 180 SDP B
3. 200 OK SDP B
3.200 OK SDP B
4.Ack
4. Ack
Call established between A and B (voice and video)
5. Bye
5.Bye
6.200 OK
6. 200 OK
The following steps provide more detail about the call flow:
1.Client A sends an Invite to Client B.
2.Client B responds with 180 SDP (Session Description Protocol)
3.Client B responds with 200 OK.
Copyright © 2003, Nortel Networks | MCP SIP Application Module Basics |
