Table of Contents
Advertisement
Deploying the snom ONE IP Telephone System
504
Table B-2 Non-RFC 3261 Methods
SIP Method
PRACK
SUBSCRIBE Subscribes for an Event of Notification from the notifier
NOTIFY
PUBLISH
INFO
REFER
MESSAGE
UPDATE
Responses are sent from the server to the client and are used to indicate the status of the
transaction. Responses are delivered in integer form (from 100 to 699) and are catego-
rized as shown in Table B-3.
Table B-3 Categories of Response Codes
1xx
Informational responses
2xx
Success responses
3xx
Redirection responses
4xx
Request failures
5xx
Server errors
6xx
Global failures
Provisional acknowledgement
Notifies the subscriber of a new event
Publishes an event to the server
Sends mid-session information that does not modify the
session state
Asks the recipient to issue a SIP request (call transfer)
Transports instant messages using SIP
Modifies the state of a session without changing the state
of the dialog
Description
RFC
3262
3265
3265
3903
2976
3515
3428
3311
Advertisement
Table of Contents
