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1.10 Conversation Features
Feature Guide 125
1.10.8 Trunk Call Limitation
Description
Trunk calls are limited by the following features:
Conditions
• During an Unattended Conference Call, the Unattended Conference Recall time is
applied. ( 1.13.1.2 Conference)
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 ( Extension-to-Trunk Call
Duration [472]). Both parties will hear an alarm tone 15 seconds
before the time-limit at five second intervals. If the timer expires,
the line will be disconnected.
COS programming determines to enable or disable this feature
( Trunk Call Duration Limitation [502]). Whether this feature is
applied to outgoing calls only or all calls is also programmable.
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 ( Trunk-to-Trunk Call Duration [473]). Both parties
will hear an alarm tone 15 seconds before the time-limit at five
second intervals. If the timer expires, the line will be
disconnected.
The timer is applied for a trunk call which is made via the PBX.
If both call is made by the extension (e.g., a trunk call made by
an extension is transferred to an outside party), the shorter limit
will apply to the call.
Budget Management When the preprogrammed call charge limit is reached, an
extension user will start to hear an alarm tone three times at five
second intervals and the user cannot make further trunk calls.
Whether the line is disconnected after the alarm tone is
programmable. ( 1.8.2 Budget Management)
Dialling Digit Restriction
during Conversation
While engaged on a received trunk call, the dialling of digits can
be restricted. If the number of dialled digits exceeds the
limitation, the line will be disconnected.