The Route Control message is sent with the following ICB to obtain a span/channel for an incoming call. This ICB is required for IP and Interworking calls.
The NPDI SIP Response Code TLV (0x2915) appears in this ICB when it is used in the Channel Released with Data message and Release Channel with Data messages. This ICB is required for the VDAC-ONE and IP Network Interface Series 2 cards.
This ICB is required to support Frequency Shift Keying for the DSP Series 2 card.
The maximum recommended NPDI size is as follows:
• 780 for the Route Control message (including the NPDI ICB size)
• 820 bytes for Outseize Control message and the other messages below (including the NPDI ICB size)
Used in:
Outseize Control message
PPL Event Indication message
PPL Event Request message
Route Control message
Connect with Data message
Request for Service with Data message
Channel Released with Data message
Release Channel with Data message