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MERLIN LEGENDCommunications System Release 6.1
System Planning
555-661-112
Issue 1
August 1998
Lines/Trunks
Page 3-21Selecting Line/Trunk Options
3
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. 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.
3. Complete the Line/Trunk Type and Description column.
Include the different calling areas of WATS trunks and
different destinations of FX trunks. If a private network trunk,
write
Network.
b. For each line/trunk, check the Dedicated column (to indicate that it is
always used for remote access) or the Shared column (to indicate
that it is used for remote access when the system is in Night Service
operation). Do not check either column for private network trunks.
7. For Class-of-Restriction without Barrier Codes on Form 3a (page 3),
complete the DID and Private Network Tie Trunks and Non-Tie Trunks
sections as follows:
a. Under the Network Calls heading, check one of the boxes using the
following information:
— If the switch is not part of a private network, check None.
— If the switch is part of a private network, and tandem calls will
pass through this system, check Tandem.
— If the switch is part of a private network, and network calls will
be allowed to access PSTN trunks, check ARS.
NOTE:
If Tandem or ARS is selected under Network Calls, the Restriction
should be set to Unrestricted. For additional information on private
networks, see the
Network Reference
.
b. For Restriction, check one of the following three boxes:
Unrestricted, Outward Restrict (to keep the factory setting), or Toll
Restrict.
!
SecurityAlert:
It is recommended that Outward Restrict be set at all times; otherwise, toll
fraud can occur. If the switch is part of a private network and restrictions
need to be changed from Outward Restricted, barrier codes should be
required.