Appendix; Sip Call Flows; Call Flow Scenarios For Successful Calls - Cisco 7960G Administrator's Manual
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Also See for 7960G:
- Administration manual (184 pages) ,
- User manual (122 pages) ,
- Phone manual (74 pages)
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SIP Call Flows
This appendix includes the following sections:
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SIP uses the following request methods:
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The following types of responses are used by SIP and generated by the Cisco SIP gateway:
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Call Flow Scenarios for Successful Calls
This section describes successful call flow scenarios, which are as follows:
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Call Flow Scenarios for Successful Calls, page B-1
Call Flow Scenarios for Failed Calls, page B-47
INVITE—Indicates that a user or service is being invited to participate in a call session.
ACK—Confirms that the client has received a final response to an INVITE request.
BYE—Terminates a call and can be sent by either the caller or the called party.
CANCEL—Cancels any pending searches but does not terminate a call that has already been
accepted.
OPTIONS—Queries the capabilities of servers.
REGISTER—Registers the address listed in the To header field with a SIP server.
REFER—Indicates that the user (recipient) should contact a third party for use in transferring
parties.
NOTIFY—Notifies the user of the status of a transfer using REFER. Also used for remote reboot
and message waiting indication (MWI).
SIP 1xx—Informational Responses
SIP 2xx—Successful Responses
SIP 3xx—Redirection Responses
SIP 4xx—Client Failure Responses
SIP 5xx—Server Failure Responses
SIP 6xx—Global Failure Responses
Gateway to Cisco SIP IP Phone in a SIP Network, page B-2
Cisco SIP IP Phone to Cisco SIP IP Phone, page B-7
A P P E N D I X
Cisco SIP IP Phone Administrator Guide, Release 6.x and 7.x
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B-1
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