0x27CA Carrier Information Parameter
(Interworking Only)

Used in:
0x0033 NPDI Universal ICB

Byte | Description
0, 1 | Tag 0x27CA
2, 3 | Length Variable
4 | Value[1] Carrier Information Name 11111011 Calling Carrier Information 11111100 Called Carrier Information
5 | Value[2] Carrier Information Parameter 11111110 Carrier Identification Code
6 | Value[3] Number of Digits
7 | Value[4] First pair of CBD digits
8 | Value[5] Second pair of BCD digits
9 | Value[6] Third pair of BCD digits
10 | Remainder of Raw SS7 Parameters Not currently used.

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 Signaling System Number Seven.