AT&T MERLIN LEGEND Release 3.1 System Planning Manual page 106

Selecting Line/Trunk Options
d. To delete digits, write the number of digits to delete (0 4). (The
system deletes from the first digit forward.)
7. For all call-by-call B-channel groups, to route all outgoing calls over a
call-by-call B-channel group, you must program the Call-by-Call Service
Table to direct the system to properly route calls. Record table entries
(maximum: 10) on Form 3b (page 8):
a. In the Pattern to Match cell, write the dial pattern to match (up to 8
digits). No wildcards are permitted.
b. In the Call Type cell, indicate the type(s) of calls that will be
associated with the pattern by doing one of the following:
c. In the Service cell, write one of the following:
d. If the system will need to delete digits, write the number of digits to
delete (0 8). (The system deletes from the first digit onward.)
8. On Form 3b, check the appropriate box for the information that will be
sent to the network for outgoing PRI calls. Check Extension Only, Base
Number with Extension, or Line Telephone Number.
If you check Line Telephone Number, do the following:
NOTE:
There is no factory-assigned telephone number. If you assign a number,
it does not have to be unique. Also, the availability of caller identification
information may be limited by your local-serving jurisdiction, availability,
or central office equipment.
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Lines/Trunks
If all outgoing calls will be voice calls (for example, Megacom
WATS), write Voice . .
If all outgoing calls will be data only (for example, ACCUNET),
write Data .
If outgoing calls may be either voice or data (for example, SDN),
write Both .
NOTE:
If you indicate Both, make sure the service can support both voice
and data calls.
AT&T Toll. Megacom WATS, ACCUNET SDS, SDN, or Long
Distance.
Local. OUTWATS, 56/64 Digital, or Virtual Private Network.
Other. Other, or No service.
Identify the trunk number.
Write the up to 12-digit telephone number that identifies the
company as the caller in the Telephone Number to Send column.