SIP Messages

This page describes data structures for SIP packets: Incoming Messages, Incoming Requests, Incoming Responses, and Outgoing Requests. While each has its own constructor, they share much similar structure, properties, and methods. As such, they are all documented together below.

• Instance Variables
  • logger
  • ua
  • headers
  • method
  • body
  • from
  • to
  • callId
  • cseq
  • ruri
  • extraHeaders
  • statusCode
  • statusCode
  • reasonPhrase
  • reasonPhrase
  • data
  • via
  • viaBranch
  • fromTag
  • toTag
  • transport
  • serverTransaction
• Instance Methods
  • setHeader(name, value)
  • addHeader(name, value)
  • getHeader(name)
  • getHeaders(name)
  • hasHeader(name)
  • parseHeader(name, idx)
  • s(name, idx)
  • toString()
  • reply(code, reason, extraHeaders, body, onSuccess, onFailure)
  • reply_sl(code, reason)

Instance Variables

logger

Logger - The outlet for log messages.

ua

SIP.UserAgent - The local User Agent the message is to or from.

headers

Object - The internal data structure for header storage. Use the getter and setter methods instead of directly accessing this.

method

String - The SIP method of the request or response.

body

String - The body contained in the SIP message, if present.

from

SIP.NameAddrHeader - The From header address of the SIP message.

to

SIP.NameAddrHeader - The To header address of the SIP message.

callId

String - The value of the Call-ID header field.

cseq

String - The value of the CSeq header field.

ruri

IncomingRequest and OutgoingRequest only

String|SIP.URI - The requested URI from the first line of the SIP request. For SIP.IncomingRequests, this is a String. For SIP.OutgoingRequests, it is a SIP.URI.

extraHeaders

OutgoingRequest only

Array - An array of extra headers to be appended to the request.

statusCode

OutgoingRequest only

Integer - The status code to include in a Reason header with the request.

statusCode

Incoming Response only

Integer - The status code of the received response.

reasonPhrase

OutgoingRequest only

String - The reason phrase to include in a Reason header with the request.

reasonPhrase

IncomingResponse only

String - The reason phrase of the received response.

data

IncomingRequest and IncomingResponse only

String - A raw string representation of the SIP message.

via

IncomingRequest and IncomingResponse only

Object - The value of the Via header(s) of the SIP message.

viaBranch

IncomingRequest and IncomingResponse only

String - The value of the first Via header’s branch parameter.

fromTag

IncomingRequest and IncomingResponse only

String - The tag parameter of the From header, if present.

toTag

IncomingRequest and IncomingResponse only

String - The tag parameter of the To header, if present.

transport

IncomingRequest only

SIP.Transport - The transport the request was received on, for sending replies.

serverTransaction

IncomingRequest only

SIP.Transaction - The transaction associated with the request.

Instance Methods

setHeader(name, value)

Sets the value of the header, overwriting any existing header with the same name.

addHeader(name, value)

IncomingRequest and IncomingResponse only

Sets the value of the header, appending it to the list of headers with that name.

getHeader(name)

Gets the value of the first header with the given name.

getHeaders(name)

Gets the array of values for the headers with the given name.

hasHeader(name)

Tests for the existence of a given header.

parseHeader(name, idx)

IncomingRequest and IncomingResponse only. Meant for internal use.

Parses the given header from a raw string based on the Grammar.

s(name, idx)

IncomingRequest and IncomingResponse only. Meant for internal use.

Alias for parseHeader.

toString()

Returns the SIP message as a String.

reply(code, reason, extraHeaders, body, onSuccess, onFailure)

IncomingRequest only.

Reply to the incoming request.

reply_sl(code, reason)

IncomingRequest only.

Reply statelessly to the incoming request, bypassing any server transaction.