0x2737 Original Called Number (Interworking Only)

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.

Byte	Description
0, 1	Tag 0x2737
2, 3	Length Variable
4	Value[0] Type of Number
6	Value[1] Screening and Presentation Indicators
7	Value[2] Numbering plan indicator
8	Value[3] Calling Party Category
9	Value[4] Number of digits
10	Value[5] BCD digit pair 1
11	Value[6] BCD digit pair 2
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