Disconnect Signaling Reliability - Lucent Technologies MERLIN LEGEND Release 5.0 System Programming Manual

MERLIN LEGEND Communications System Release 5.0
System Programming 555-650-111
4 Programming Procedures
Lines and Trunks

Disconnect Signaling Reliability

Use this procedure to classify the disconnect signal sent by the central office on
loop-start trunks as one of the following:
Reliable. Signal sent within a short time.
Unreliable. Signal may not be provided.
!
SecurityAlert:
Toll fraud can occur if you have loop-start trunks with unreliable disconnect.
In this situation, if someone calls you and you hang up, the CO could send
dial tone before the caller hangs up, allowing the caller to place another call
as if it originated at your company.
The setting selected applies to all trunks in the system because trunks cannot be
programmed individually. The reliable/unreliable setting does not apply to
loop-start trunks emulated on a T1 facility. If you specify a reliable disconnect for
trunks programmed with a short hold disconnect interval (see
Interval''), active calls as well as trunks on hold may be disconnected. For more
information about reliable and unreliable disconnect and its implications, see the
Feature Reference.
NOTE: NOTE: NOTE:
Certain features (Remote Call Forwarding and Transfer to outside
numbers) and applications (CMS, AUDIX Voice Power, and MERLIN MAIL)
are not recommended with loop-start trunks. See
Interval''.
Summary: Disconnect Signaling Reliability
Programmable by
Mode
Idle Condition
Planning Form
Factory Setting
Valid Entries
Inspect
Copy Option
Console Procedure
PC Procedure
System Manager, Integrated Administration
All
Not required
Form 2c, System Numbering: Line/Trunk Jacks
Unreliable
Unreliable, Reliable
No
No
LinesTrunks TT/LS Disc
No Enter Exit
4
''Hold Disconnect
''Hold Disconnect
4
LS Disconnect
Exit
or
Issue 1
June 1997
Page 4-38
or
Yes