Nortel Modular ICS 7.1, Инструкция по установке

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/ Trunks and target lines
Modular ICS 7.1 Installer Guide N0130943 02
To place an outgoing call, a loop start line can be selected by:
• pressing a line button on the telephone
• dialing a line pool access code
• pressing a memory button that has been programmed with
a line pool access code
Configuration tips
• Loop start signaling is supported by Loop Start Trunk
Cartridges, Call Information (CI) Trunk Cartridges and
Digital Trunk Interfaces (DTI). Each Loop Start Trunk
Cartridge or CI Trunk Cartridge can provide four loop start
trunks. A DTI can provide up to 24 loop start trunks. If you
wish to configure your loop start trunks as auto-answer,
the trunks must have disconnect supervision.
• For Loop Start or CI Trunk Cartridges installed in a Trunk
Module, you will also need one E&M/DISA Trunk
Cartridge for every two loop start trunks that you configure
as auto-answer. The E&M/DISA Trunk Cartridge provides
two DTMF receivers to receive the incoming digits from
the central office. An auto-answer loop start trunk can give
you the same kind of direct inward dialing function as a
DID trunk.
• If your system includes both loop start trunks and DID
trunks, you would typically use loop start trunks for
outgoing calls and DID trunks for incoming calls.
• You may configure a loop start trunk as the prime line for
a Norstar telephone or a Business Series Terminal.
• The capabilities available to a remote caller are determined
by the remote filters and remote package assigned to a line,
or by the set restrictions, line restrictions, and remote
package assigned to the Class of Service password.