17.37. NAAT - North America Analog Trunks 
Feature:
If a Trunk release different way of Release for US and Rest of World-Trunks
Function:
NAAT is set, so release is like US type.
NAAT is not set, so release is like Rest of World (IM market).
IMPORTANT:
Must be set for all analog US trunks.
AMO-Interrelationships:
None
Device type:
TMEMUS,TMDID,TMC16,TMDN64
Protocol variants:
PLAR, HOOT & HOLLER,E & M Protocol