DEFINITY ECS Release 8.2
Administrator’s Guide 555-233-506
Issue 1
April 2000
Screen reference
Page 867
NPA:
This entry is not required for AAR.
Valid entries Usage
3-digit number Enter the 3-digit Numbering Plan Area (NPA) (or area code)
for the terminating endpoint of the trunk group. Call your local
telephone company to verify this number if you need help.
For WATS trunks, the terminating NPA is the same as the
home NPA unless the Local Exchange Carrier requires 10
digits for local NPA calls.
blank For AAR calls and for tie trunks
Prefix Mark:
This entry is not required for AAR. For ARS, enter a number from 0 to 4 or blank.
Prefix Marks set the requirements for sending a prefix digit 1, indicating a
long-distance call. Prefix Marks apply to 7- or 10-digit Direct Distance Dialing
(DDD) public network calls. A prefix digit 1 is sent only when call type is foreign
number plan area (FNPA) or home numbering plan area (HNPA) in the ARS Digit
Analysis table.
For a WATS trunk, the Prefix Mark is the same as the local CO trunk.
Valid entries Usage
3-digit number Enter the 3-digit Numbering Plan Area (NPA) (or area code)
for the terminating endpoint of the trunk group. Call your local
telephone company to verify this number if you need help.
For WATS trunks, the terminating NPA is the same as the
home NPA unless the Local Exchange Carrier requires 10
digits for local NPA calls.
blank For AAR calls and for tie trunks
Valid
entries Usage
0 n Suppress a user-dialed prefix digit 1 for 10-digit FNPA calls.
n Leave a user-dialed prefix digit 1 for 7-digit HNPA calls.
n Leave a prefix digit 1 on 10-digit calls that are not FNPA or HNPA
calls.
Do not use Prefix Mark 0 in those areas where all long-distance calls
must be dialed as 1+10 digits. Check with your local network provider.
1 n Send a 1 on 10-digit calls, but not on 7-digit calls.
Use Prefix Mark 1 for HNPA calls that require a 1 to indicate
long-distance calls.
2 n Send a 1 on all 10-digit and 7-digit long-distance calls.
Prefix Mark 2 refers to a Toll Table to define long distance codes.
DEFINITY ECS Release 8.2
Administrator’s Guide 555-233-506
Issue 1
April 2000
Screen reference
868 Route Pattern
17
3 n Send a 1 on all long-distance calls and keep or insert the NPA (area
code) so that all long distance calls are 10-digit calls. The NPA is
inserted when a user dials a Prefix digit 1 plus 7-digits.
Prefix Mark 3 refers to a Toll Table to define long distance codes.
4 n Always suppress a user-dialed Prefix digit 1.
Use Prefix Mark 4, for example, when ISDN calls route to a switch
that rejects calls with a prefix digit 1.
blank For tie trunks, leave this field blank.
Valid
entries Usage -CL
