2.0 Mb DTI/PRI Administration and Maintenance Guide Book ... - Home

Appendix B — Basic and Network Alternate Route Selection (BARS/NARS) Page 1457 of 1536
— Automatic least-cost routing
— Time-of-Day (TOD) routing
— Network controls through Network Class of Service (NCOS), Traveling
Class of Service (TCOS), FRL, and regular SL-1 COS
— Routing control through NCOS alterations based on a special TOD
schedule
— 1-4 digit translation and 1-7 digit restriction (X11 release 4)
— 1-4 digit translation, 1-7 digit restriction, and 1-7 digit recognition
(X11 release 5)
— 1-11 digit translation, restriction, recognition (X11 release 8)
— Free Calling Area Screening (FCAS)
— Expensive Route Warning Tone (ERWT)
Uniform dialing plan
The Uniform dialing plan (UDP) is not a feature of BARS or NARS, but is an
operation that enables users at an SL-1 node, SL-1 main, or conventional
main to dial all calls in a uniform manner regardless of the location of the
calling party or the route which the call will take. (UDP now applies to
BARS on X11 release 5 using off-net number recognition and calling HLOC
and SPN or NXX codes.) LOCs are programmed as NXXs or SPNs.
UDP for on-net calling
An on-net call is one which terminates at a customer-owned location. To
reach any on-net location, the user dials the NARS or BARS on-net access
code (AC1), followed by seven digits. The dialing format for this call would
be:
Option 11C 2.0 Mb DTI/PRI Administration and Maintenance guide