T - 4 Tandem Switching of 4-Wire E&M Tie Lines
Issue 6 Electra Elite
External Software pad control applies to the following connections:
• E&M Tie Line to CO Trunk
• E&M Tie Line to E&M Tie Line
• CO Trunk to E&M Tie Line
Restrictions:
Tandem connection is not monitored for Code Restriction or LCR.
General:
The Electra Elite 192 system handles 32 simultaneous tandem calls.
The Electra Elite 48 system handles 8 simultaneous tandem calls.
After a tandem connection is complete, the trunks return to idle if
either party hangs up, and a disconnect signal is received or the
Disconnect Time (default: 60 minutes) set in Memory Block 1-4-00
(Tandem Transfer Automatic Disconnect Time Selection) elapses.
Tandem Switching of E&M Tie Lines can be accomplished through
several Electra Elite systems.
The local Electra Elite 48/192 system can be programmed to restrict
individual station users access to specific E&M Tie Lines. Each
station can be programmed to restrict the maximum number of digits
dialed on an E&M Tie Line by assigning Code Restriction.
Access to outside lines by an E&M Tie Line user is recorded by
SMDR where the CO line is connected. The originating system may
also record the Tie Line user using its own SMDR.
Tandem connection can be allowed/denied per Trunk group for one
or both directions.
Assigned Tie/DID lines can add/delete up to two digits per Trunk
group.
RELATED FEATURES
LIST
Feature
Number
Feature Name
E-3 E&M Tie Lines (4-Wire)
U-3 Uniform Numbering Network
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