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M-3
General Description
This feature provides for certain stations and certain dial-repeating TIE trunks to be denied access to
particular trunk groups such as FX [F-2], WATS [W-1], CCSA [C-14], TIE LINE [T-3], Exchange Network,
DICTATION [D-3] or PAGING [P-1].
Operating Procedure
MISCELLANEOUS TRUNK RESTRICTION is accomplished via System Data programming at the
MAINTENANCE ADMINISTRATION TERMINAL (MAT) [M-18].
Service Conditions
1.
Restricted call attempts can be either:
a.) intercepted by the Attendant,
b.) Reorder Tone can be initiated back to the originating station user,
c.) station user can be connected to an announcement informing the user of the restricted
call attempt, or
d.) prompted for Authorization Code.
2.
Station line access to a given miscellaneous trunk group is controlled by assigning a Route
Restriction Class (RSC) to each line. There can be a maximum of 15 different RSCs (RSC1-15)
per TENANT [T-12], each of which can be programmed to restrict an assigned station from none,
one, or more than one miscellaneous trunk group (maximum IMG, IMGx: 31 trunk groups;
IMGxh, IMGdxh, MMG, UMG, UMGx: 255 trunk groups).
3.
If the station user's class of service allows outgoing route completion via the ATTENDANT
CONSOLE [A-3], the station user can dial "0" to reach the Attendant for completion of
miscellaneous trunk calls.
4.
The CALL TRANSFER - ALL CALLS [C-11] feature will operate as follows:
a.) if the restricted station is the controller, this station cannot add a trunk from which this
station is restricted.
b.) if the restricted station line is not the controller, the controller cannot connect the
restricted station line to a trunk from which the station is normally restricted.
5.
Two outgoing trunk group restriction tables are provided per system. The Direct Dial Access
table is indexed when a station user dials the trunk group access code and the ATTENDANT
CONSOLE [A-3] table is indexed on Attendant completed calls. The restriction options per RSC
can differ per table, thus allowing Attendant completion of outgoing calls for restricted stations.
6.
NIGHT SERVICE [N-1, 2]: Restrictions can be changed for a given station when the system is
switched to the Night mode of operation.
7.
CALL TRANSFER - ALL CALLS [C-11]: If a restricted station user calls another station, the
called station cannot use the CALL TRANSFER feature to connect the calling station to a trunk
group to which the restricted station is denied dial access. If transfer is attempted, the controlling
station is rung back.
8.
TIE LINE ACCESS [T-3]: If the station user accesses a TIE trunk at a distant PBX, access to
outside exchanges can only be controlled by the distant PBX.
NEAX2400 ICS Business Features and Specifications
NDA-24143, Issue 4
Miscellaneous Trunk Restriction
Miscellaneous Trunk Restriction
M-3
Page 309
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