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ADMINISTRATIVE PROCEDURE SUMMARY
C-13
PROCEDURE 309 WORD 5 (System 85 R2V4 & Generic 2)
This word deals with the sending of a particular NSF IE in the setup message and with rules of route
selection.
Field 4, ISDN Trunk Type
This field can only contain a value when the trunk group associated with the plan, pattern, or
preference has a type of ISDN dynamic. Here, it must have a value entered or the outgoing call over
this preference will fail. The selection of a trunk type is not crucial since the ARS feature determines
code flow more so than does the trunk type. However, an appropriate trunk type should be selected
for the calls associated with this plan, pattern, or preference.
Field 5, Network Service Value
The value entered in this field along with the value entered in field 12 of procedure 309, word 1, (the
IXC/ISDN network identifier) determine the NSF IE for calls routed over this plan, pattern, or
preference. An NSF IE is not sent if a value is not entered. If field 5 has no value but an IXC/ISDN
network identifier is specified, the network identification is specified with the transit network
selection IE instead of the network-specific facilities IE.
The following subsections examine the layout of this IE for both System 85 R2V4 and Generic 2.