SIP requests are the codes used by Session Initiation Protocol for communication. To complement them there are SIP Responses, which generally indicate whether this request succeeded or failed, and in the latter case, why it failed.
| Request name | Description | Defined in |
|---|---|---|
| INVITE | Indicates a client is being invited to participate in a call session. | RFC 3261 |
| ACK | Confirms that the client has received a final response to an INVITE request. | RFC 3261 |
| BYE | Terminates a call and can be sent by either the caller or the callee. | RFC 3261 |
| CANCEL | Cancels any pending request. | RFC 3261 |
| OPTIONS | Queries the capabilities of servers. | RFC 3261 |
| REGISTER | Registers the address listed in the To header field with a SIP server. | RFC 3261 |
| PRACK | Provisional acknowledgement. | RFC 3262 |
| SUBSCRIBE | Subscribes for an Event of Notification from the Notifier. | RFC 3265 |
| NOTIFY | Notify the subscriber of a new Event. | RFC 3265 |
| PUBLISH | Publishes an event to the Server. | RFC 3903 |
| INFO | Sends mid-session information that does not modify the session state. | RFC 6086 |
| REFER | Asks recipient to issue SIP request (call transfer.) | RFC 3515 |
| MESSAGE | Transports instant messages using SIP. | RFC 3428 |
| UPDATE | Modifies the state of a session without changing the state of the dialog. | RFC 3311 |
Famous quotes containing the words list of, list, sip, request and/or methods:
“Thirty—the promise of a decade of loneliness, a thinning list of single men to know, a thinning brief-case of enthusiasm, thinning hair.”
—F. Scott Fitzgerald (1896–1940)
“I am opposed to writing about the private lives of living authors and psychoanalyzing them while they are alive. Criticism is getting all mixed up with a combination of the Junior F.B.I.- men, discards from Freud and Jung and a sort of Columnist peep- hole and missing laundry list school.... Every young English professor sees gold in them dirty sheets now. Imagine what they can do with the soiled sheets of four legal beds by the same writer and you can see why their tongues are slavering.”
—Ernest Hemingway (1899–1961)
“The way you wear your hat
The way you sip your tea.”
—Ira Gershwin (1896–1983)
“Were all the worshippers of the gold calf to memorialize me and request a restoration of the deposits I would cut my right hand from my body before I would do such an act. The gold calf may be worshipped by others but as for myself I serve the Lord.”
—Andrew Jackson (1767–1845)
“All good conversation, manners, and action, come from a spontaneity which forgets usages, and makes the moment great. Nature hates calculators; her methods are saltatory and impulsive.”
—Ralph Waldo Emerson (1803–1882)