0x2919 NPDI SIP To Username

In a Request for Service message and PPL Event Indication, this TLV provides information parsed from the "To" header field of the incoming SIP message (for example INVITE or REGISTER). This TLV could be used in a Route Control message to specify the remote User Agent’s addressing information, which would be used to create the "To" header for the outgoing SIP message. Use this TLV to specify a username in the "To" header.

Used in:
0x0033 NPDI Universal ICB in:
Outseize Control message
Request for Service with Data message
Route Control message

Byte | Description
0, 1 | Tag 0x2919
2, 3 | Length Variable
: | Value A Null-terminated ASCII string

See Programmable Protocol Language.
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.
Network Protocol Data Intelligence. Also called “Interworking,” it is a software product that operates within Excel’s Call Control (Layer 4) and Services (Layer 5) call processing layers. NPDI is meant to enhance Excel’s call processing product offering by allowing call processing layers (specifically Layers 4 and 5) to perform advanced analysis, generation, and conversion of Network Signaling (NS) Layer 3 information.
See Information Control Block.
Outgoing call setup during real-time call processing on a specific channel.
American Standard Code for Information Interchange