Toll Type Prefix Required; Hold Disconnect Interval - 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
For touch-tone trunks (factory setting), put a check in the TT column.
For rotary-dial trunks, put a check in the R column.

Toll Type Prefix Required

Toll Type allows the system to classify calls as either local or toll, based on the
number dialed by the user. Normally, people have to dial a toll-call prefix
(1 or 0) before dialing the area code and telephone number for a toll call. In some
areas, this is not necessary; dialing a prefix depends on local telephone company
requirements and the type of line/trunk used.
Find out from the local telephone company which trunks require a toll-call prefix.
This information is used by the system when a toll call is placed by an extension
on ground-start or loop-start trunks.
For reliable toll restriction, telephone company trunks must require 1 or 0 for toll
calls. Also, the Toll Type feature does not apply to tie trunks.
Planning Form Instructions
On Form 2c, in the Toll Type Prefix Required for LD column, check Yes next to any
trunks on which people need to dial a prefix when placing toll calls.

Hold Disconnect Interval

This option allows you to set the number of milliseconds (ms) before the line/trunk
is released when a caller on hold hangs up and abandons the call. Local
telephone companies use either a long (450 ms) or short (50 ms) interval. The
factory setting for the system is the long interval, since it is the interval used by
most telephone companies.
Check with the local telephone company for the disconnect interval used.
If the local telephone company uses the short interval, you must change the
factory setting. If you do not change the setting, when a caller waiting on hold
hangs up, the line/trunk is not released.
Planning Form Instructions
In the Hold Disc. Interval column on Form 2c, do either of the following:
To change to a short hold disconnect interval (50 ms), put a check in the
Short column.
NOTE:
If the local telephone company uses a short hold disconnect interval,
be sure you have checked No for Loop-Start Reliable Disconnect, as
described earlier in this section.
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Issue 1
April 1999
3-14
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