2.11.8 Trunk Call Limitation
Description
Trunk calls are limited by the following features:
Feature Description
Extension-to-Trunk Call
Duration
If a call between an extension user and an outside party is
established, the call duration can be restricted by a system timer
selected
for each trunk group. Both parties will hear warning tones at
five-second intervals starting 15 seconds before the time limit.
*1
When
the time limit expires, the line will be disconnected. COS
programming determines whether this feature is enabled or disabled.
Whether this feature applies to outgoing calls only, or to both outgoing
and incoming calls is determined through system programming.
Trunk-to-Trunk Call (except
Unattended Conference Call)
Duration
If a call between two outside parties is established, the call duration
can be restricted by a system timer selected for each trunk group.
Both parties will hear warning tones at five
-second intervals starting
15 seconds before the time limit.
*1
When the time limit expires, the
line will be disconnected.
If both parties involved in the trunk-to trunk call were established by
an extension (e.g., an extension makes a trunk call, then transfers
the call to an outside party), the time limit applied to the trunk call that
was made first will be used.
Budget Management When the preprogrammed call charge limit has been reached, an
extension
user will hear 3 warning tones at five-second intervals. It is
programmable whether the line is disconnected after the third tone.
After the call has ended, the extension user cannot make further trunk
calls until the charge limit has been increased or cleared by an
extension assigned as a manager (® 2.7.2 Budget Management).
Dialling Digit Restriction
during Conversation
While engaged in an incoming trunk call, the dialling of digits can be
restricted. If the number of dialled digits exceeds the limitation, the
line will be disconnected.
Logical Partitioning Feature Some types of trunk calls can be restricted with the following Logical
Partitioning settings:
9.2.2 PBX Configuration—[1-1] Configuration
—Slot—System
Property—Site—Main—
Area ID for logical partition
10.9 PBX Configuration
—[2-9] System—System Options—Option
2—
Applying logical partitioning
For
details, refer to "10.9 PBX Configuration—[2-9] System—System
Options—Option 2—
Applying logical partitioning" in the PC
Programming Manual.
The following log data can be collected and displayed through PC
Programming. Refer to "7.3.5 Utility—Log
—Call Control Log" in the
PC Programming Manual.
1. Log data (condition) will be recorded when you change any of the
Logical Partitioning settings.
2. Log data (status) will be recorded whenever a call is restricted by
the Logical Partitioning feature.
*1
A party connected via an IP trunk or SIP trunk will not hear the warning tone.
176 Feature Guide
2.11.8 Trunk Call Limitation
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