Outmode Signaling - Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
3 Lines/Trunks
Selecting Line/Trunk Options
!
SECURITY ALERT:
Toll fraud can occur when loop-start lines/trunks are used with unreliable
disconnect. If the calling party stays on the line after the called party hangs
up, the central office will return a dial tone at the conclusion of the call
enabling the caller to place another call as if it were being placed from your
company.
Since the disconnect signal on most loop-start trunks is unreliable, the factory
setting for the disconnect signal is Unreliable.
Before you change the setting, check with the telephone company to determine
whether the disconnect signals for the loop-start trunks are reliable and to obtain
the length of the hold disconnect interval.
If you select Reliable disconnect, you can set the interval after which the line/trunk
is released as described in the
chapter.
Trunk-to-trunk transfer is programmed on a per-extension basis and should
remain disabled even if the loop-start trunk has reliable disconnect. See the
''Trunk-to-Trunk Transfer''
Planning Form Instructions
At the top of Form 2c, under the Loop-Start Reliable Disconnect heading, choose
one of the following:
If the loop-start trunks have an unreliable disconnect signal, check the No
box (the factory setting).
If the loop-start trunks have a reliable disconnect signal, check Yes.

Outmode Signaling

The system is factory-set to generate touch-tone signals when users dial outside
calls. Identify any rotary-dial trunks that are connected to the system so that
rotary-dial signals can be used for these trunks.
NOTE:
Touch-tone, single-line telephone users cannot make calls using rotary-dial
trunks unless their telephones allow them to switch between touch tones
and rotary dial pulses. Check with the local or long-distance telephone
company to determine which, if any, trunks connected to the system are
rotary-dial trunks.
Planning Form Instructions
In the Outmode Signaling column on Form 2c, do one of the following:
''Hold Disconnect Interval''
section in Chapter 4.
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Issue 1
April 1999
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section later in this
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