0x2922 SIP REFER-To Header Param

This TLV contains the Refer-To Parameter in the Refer-To Header field:

Used in:

PPL Event Request message
PPL Event Indication message

Byte | Description
0, 1 | Tag 0x2922
2,3 | Length Variable (Maximum 250 bytes)
4-n | Value[0] A null-terminated ASCII string

• The data in the TLV 0x2922 is up to the interpretation of the host. The SIP stack does no masking/unmasking.

• If the TLV 0x2922 is present in the PPL ER for REFER then the host should have provided the ‘>’ in the TLV data itself. If the host does not provide it then it is assumed to be at the end by the SIP stack.

Tag-Length-Value block. A standardized block that allows data to inserted in a standard way into API messages.
See Programmable Protocol Language.
A condition that, when met, drives a state machine from one state to another. A condition that drives a Component out of its current state by invoking an associated primitive.
American Standard Code for Information Interchange
Session-Initiation Protocol. A signaling protocol used for establishing sessions in an IP network. A session could be a simple, two-way telephone call, or it could be a collaborative multi-media conference session.