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L-5
Service Conditions (cont'd)
16. Stations having different Route Restriction Classes, but using the same LCR - 3/6-DIGIT pattern,
can be denied access to the last choice trunk route(s) in that pattern. Route Restriction Classes
may be set up so that a station dialing an area code can use WATS, FX, and DDD; or only the
WATS line, if such an arrangement is desired. This is a form of "forced" LCR.
17. NXX patterns may be programmed to restrict all stations in the system from completing calls to
specific NXX numbers over FX trunks.
18. The system will include the ability to detect a dialed DDD number and compare it with a DDD list
table to determine if the call is directed to a facility served by the trunk network. If the dialed
number is found in the DDD list table, a translation is provided to the 7-digit on-net number (ABC-
XXXX) served by the TIE Trunk. This allows an expensive public network dialed number to be
trapped and automatically diverted to an available leased facility. If a TIE Line is not available,
the call will be routed as dialed.
19. The NEAX2400 ICS is capable of converting a maximum of 24 receiving digits into a required
24-digit number entirely. Interdigit pauses can be inserted whenever necessary. This provides
for an extremely flexible numbering plan for a complex network.
20. When deleting the AOPR command, this also deletes the ASDC table using the OPR pattern.
Interactions
1.
AFRS and AMND tables must correlate to each other. If dialing patterns listed in AFRS are not
programmed in AMND, the calls will not go through. Also, if dialing patterns are not set in AFRS,
including simple local calls, the calls will not go through.
2.
LCR (S) provides only route selection based on digits dialed and route availability. Once a route
has been determined to be available because of dialed digits, Route Restriction Class will
determine if this route will be made available to the station. If denied and other routes are
available, the same process will occur. If no other route is available, the station user will hear a
reorder tone.
3.
In ARTD, CDN 9:TQ must be assigned for the LCR(S) Flag Route 31 if Trunk Queuing is to
operate in conjunction with LCR(S).
Page 288
Least Cost Routing - 3/6-Digit
NEAX2400 ICS Business Features and Specifications
NDA-24143, Issue 4
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