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1.10 Conversation Features
Feature Guide 85
1.10.8 Outside (CO) Line Call Limitation
Description
Outside (CO) line calls are limited by the following features:
Conditions
• Lockout
If one party in a conversation goes on-hook, the call between both parties will be disconnected. A
reorder tone is sent to the off-hook party before the call is disconnected. No operation is necessary.
• When an extension user seizes an outside (CO) line and then transfers the call to another extension
user who can use this feature, the Extension-to-Outside (CO) Line Call Duration timer starts after the
transferred call is answered by the outside party.
• The Outside-to-Outside (CO-to-CO) Line Call Duration feature applies to the following calls:
– Calls forwarded by the FWD to Outside (CO) Line feature ( 1.3.1.2 Call Forwarding (FWD))
– Calls transferred by the Call Transfer to Outside (CO) Line feature ( 1.11.1 Call Transfer)
– Calls using the DISA feature ( 1.15.6 Direct Inward System Access (DISA))
– Calls using the Unattended Conference feature ( 1.13.1.2 Conference)
Feature Description
Extension-to-Outside (CO)
Line Call Duration
When a call between an extension user and an outside party is
established, the call duration is restricted by a timer ( Extension-to-CO
Line Call Duration [212]). Both parties will hear a warning tone at 5-
second intervals 15 seconds before the timer expires. When the timer
expires, the call is disconnected. System programming determines which
extensions have calls limited by this feature (
CO Line Call Duration
Limitation [613]). This timer applies to outside (CO) line calls that are
made via the PBX.
Outside-to-Outside (CO-to-
CO) Line Call Duration
When a call between 2 outside parties is established, the call duration is
restricted by a timer ( CO-to-CO Line Call Duration [205]). Both parties
will hear a warning tone 15 seconds before the timer expires. When the
timer expires, the call is disconnected.