0x2949 - SIP Response Reason Phrase

This TLV is used when reporting or generating the 182 Reason Phrase.

Not all characters are allowed in the Reason Phrase of a SIP response. Refer to the SIP RFC ABNF for a complete list.

Byte | Description
0, 1 | Tag 0x2949
2, 3 | Length Variable (Maximum of 250)
4-n | Value Null terminated ASCII string

Tag-Length-Value block. A standardized block that allows data to inserted in a standard way into API messages.
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.
American Standard Code for Information Interchange