Appendix C SIP Call Flows
Call Flow Scenarios for Successful Calls
C-4
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
Cisco IP Phone-to-SIP Server—Registration with Authentication
illustrates the Cisco IP Phone registering with the SIP server where
authentication is required for registration.
describes these actions in
shows the log of these actions.
The call flow is as follows:
1.
Cisco IP Phone requests registration.
2.
SIP server requests authentication credential.
3.
Authentication is received and registration is completed.
Table C-2
Log Listing
1.
REGISTER sip:cisco.com SIP/2.0
Via: SIP/2.0/UDP 192.168.2.163:5060
From: <sip:[email protected];user=phone>;tag=1692201497
To: <sip:[email protected];user=phone>
Call-ID: [email protected]
CSeq: 1 REGISTER
Contact: <sip:[email protected]:5060;user=phone;transport=udp>;expires=3600
User-Agent: Cisco-CP7905/1.01-030429A
Allow: ACK, BYE, CANCEL, INVITE, NOTIFY, OPTIONS, REFER, REGISTER
Content-Length: 0
2.
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.2.163:5060;received=192.168.2.163
Call-ID: [email protected]
From: <sip:[email protected];user=phone>;tag=1692201497
To: <sip:[email protected];user=phone>
CSeq: 1 REGISTER
Content-Length: 0
3.
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.2.163:5060;received=192.168.2.163
Call-ID: [email protected]
From: <sip:[email protected];user=phone>;tag=1692201497
To: <sip:[email protected];user=phone>
CSeq: 1 REGISTER
Contact: <sip:[email protected]:5060;user=phone;transport=udp>;expires="Fri, 02
May 2003 00:52:58 GMT"
Expires: 3600
Content-Length: 0
Содержание Unified 7905G
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