C-3
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
Appendix C SIP Call Flows
Call Flow Scenarios for Successful Calls
Figure C-1
Cisco IP Phone-to-SIP Server—Registration without
Authentication
Table C-1
Action Descriptions
Step
Action
Description
Step 1
REGISTER—Cisco IP Phone to SIP server Cisco IP Phone sends a REGISTER message to
the SIP server to register the address in the To
header field.
Step 2
100 Trying—SIP Server to Cisco IP Phone SIP server returns a 100 Trying message,
indicating that the REGISTER request has been
received.
Step 3
200 OK—SIP server to Cisco IP Phone
SIP server returns a final 200 OK response,
confirming that registration is complete.
1. REGISTER
2. 100 Trying
3. 200 OK
94052
Cisco IP Phone
IP network
SIP server
IP
Содержание Unified 7905G
Страница 4: ......
Страница 23: ...xxiii Cisco IP Phone Models 7905G and 7912G Administrator Guide SIP OL 4277 01 Preface Document Conventions ...
Страница 24: ...Preface Document Conventions xxiv Cisco IP Phone Models 7905G and 7912G Administrator Guide SIP OL 4277 01 ...
Страница 222: ...Glossary GL 12 Cisco IP Phone Models 7905G and 7912G Administrator Guide SIP OL 4277 01 ...