0x2933 SIP Contact Transport Type

Specifies the transport type contained in the registration method.

Used in:
0x0033 NPDI Universal ICB in:
Setup Indication message
PPL Event Indication message

Byte | Description
0, 1 | Tag 0x2933
2, 3 | Length 0x0001
4-7 | Value[0] 1 - UDP 2 - TCP

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.
See Programmable Protocol Language.