1.10 Conversation Features
Feature Guide 87
Conditions
• During an Unattended Conference Call, the Unattended Conference Recall time is applied. (→ 1.13.1.2
Conference)
Feature Description
Extension-to-CO Line
Call Duration
If a call between an extension user and an outside party is established, the
call duration can be restricted by the system timer selected for each CO line
group (→ Extension-to-CO Line Call Duration [472]). Both parties will hear an
alarm tone 15 seconds before the timer expires, at five-second intervals. If
the timer expires, the line will be disconnected.
Class of Service (COS) programming determines whether this feature is
enabled or disabled (→ CO Line Call Duration Limitation [502]). Whether this
feature is applied to outgoing calls only or to both incoming and outgoing calls
is also programmable.
CO-to-CO Line Call
(except Unattended
Conference Call) Duration
If a call between two outside parties is established, the call duration can be
restricted by the system timer selected for each CO line group (→ CO-to-CO
Line Call Duration [473]). Both parties will hear an alarm tone 15 seconds
before the timer expires at five-second intervals. If the timer expires, the line
will be disconnected.
This timer applies to CO line calls which are made via the PBX. If both calls
are made by the extension (such as a CO line call made by an extension is
transferred to an outside party), the shorter timer will apply to the call.
Dialing Digit Restriction
during Conversation
While engaged on a received CO line call, the dialing of digits can be
restricted. If the number of dialed digits exceeds the limitation, the line will be
disconnected.
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