0x292F NPDI SIP Contact Hostname

This TLV provides the IP address from the Contact URL in ASCII string.

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

Byte | Description
0, 1 | Tag 0x292F
2, 3 | Length Variable
| Value NULL Terminated ASCII value for SIP 'Contact' hostname

Tag-Length-Value block. A standardized block that allows data to inserted in a standard way into API messages.
Internet Protocol. Part of the TCP/IP family of protocols used to route messages and tracks the addresses of nodes.
American Standard Code for Information Interchange
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.
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.