Call Flow Scenarios For Successful Calls; Cisco Ata-To-Sip Server-Registration Without Authentication; Cisco Ata-To-Sip Server-Registration With Authentication - Cisco ATA-186 Administrator's Manual

Call Flow Scenarios for Successful Calls

Call Flow Scenarios for Successful Calls
This section describes call flows for the following scenarios:
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Each of the call flows includes a call diagram, action descriptions table, and a sample log file.
Cisco ATA-to-SIP Server—Registration without Authentication
Figure D-1
registration.
The call flow is as follows:
1.
2.
Figure D-1
Cisco ATA 186
Table D-1 Action Descriptions
Step Action
Step 1 REGISTER—Cisco ATA to SIP server
Step 2 100 Trying—SIP Server to Cisco ATA
Step 3 200 OK—SIP server to Cisco ATA
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's Guide (SIP)
D-2
Cisco ATA-to-SIP Server—Registration without Authentication, page D-2
Cisco ATA-to-SIP Server—Registration with Authentication, page D-3
Cisco ATA-to-Cisco ATA—Basic SIP to SIP Call without Authentication, page D-6
Cisco ATA-to-Cisco ATA—Basic SIP to SIP Call with Authentication, page D-12
illustrates the Cisco ATA registering with the SIP server. Authentication is not required for
Cisco ATA requests registration.
Registration is completed.
Cisco ATA-to-SIP Server—Registration without Authentication
IP network
V
1. REGISTER
2. 100 Trying
3. 200 OK
SIP server
Description
Cisco ATA sends a REGISTER message to the SIP server to register
the address in the To header field.
SIP server returns a 100 Trying message, indicating that the
REGISTER request has been received.
SIP server returns a final 200 OK response, confirming that
registration is complete.
Appendix D SIP Call Flows
OL-3410-01