Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual page 142

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
3 Lines/Trunks
Selecting Line/Trunk Options
4. Under the Barrier Required for Private Network Tie Trunks heading, check
either of the following:
!
5. Under the Barrier Codes Required for Non-Tie Trunks (DID, PRI private
network calls, and PRI Dial-Plan routing) heading, check one of the
following:
!
6. Remote access should not be assigned to DID trunks and private network
tandem trunks that are used for incoming customer calls. However, for all
trunks to which you are assigning remote access:
a.
If any of the following conditions apply, check Yes.
— You plan to assign barrier codes to these trunks.
— Private network Tie calls are allowed access to PSTN trunks
using ARS.
— Private network Tie calls pass through the system (use
Tandem switching).
If no barrier codes are planned for these trunks, check No.
SECURITY ALERT:
To help prevent toll fraud, barrier codes should always be assigned.
The barrier codes should also be the maximum length allowed.
If any of the following conditions apply, check Yes.
— You plan to assign barrier codes to these trunks.
— Private network PRI calls are allowed access to PSTN trunks
using ARS.
— Private network PRI calls pass through the system (use
Tandem switching).
If no barrier codes are planned for these trunks, check No.
SECURITY ALERT:
To help prevent toll fraud, barrier codes should always be assigned.
The barrier codes should also be the maximum length allowed.
Transfer the information from Form 2c, System Numbering: Line/
Trunk Jacks to Form 3a:
1. Write the logical ID and line/trunk number in the applicable
columns.
2. Check either the DID or Priv. Net. Tie Trunk column or the
Non-Tie Trunk column.
Issue 1
April 1999
3-20