1.10 Conversation Features
1.10.8 Trunk Call Limitation
Description
Trunk calls are limited by the following features:
Feature | Description |
|
|
If a call between an extension user and an outside party is | |
Duration | established, the call duration can be restricted by a system timer |
| selected for each trunk group ( |
| Duration [472]). Both parties will hear an alarm tone 15 seconds |
| before the |
| 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. |
|
|
If a call between two outside parties is established, the call | |
(except Unattended | duration can be restricted by a system timer selected for each |
Conference Call) | trunk group ( |
Duration | will hear an alarm tone 15 seconds before the |
| 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 | While engaged on a received trunk call, the dialling of digits can |
during Conversation | be restricted. If the number of dialled digits exceeds the |
| limitation, the line will be disconnected. |
|
|
Conditions
•During an Unattended Conference Call, the Unattended Conference Recall time is applied. ( 
1.13.1.2 Conference)
