3Com 3103 - NBX Manager VoIP Phone, Руководство пользователя

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62 C
HAPTER
4: S
TANDARD
F
EATURES
You initiate an Automatic Callback through Feature code 469 or a
programmed system access button depending on the type of NBX
telephone you have and how it is configured.
Initiating Automatic
Callback
You can initiate Automatic Callback while making a direct call to an
extension that is in use or unanswered.
On a 3Com Manager’s Telephone:
1 While on a call, press the Features soft button.
2 Scroll to Automatic Callback .
3 Press Select .
4 Disconnect from the call.
■
If the Automatic Callback attempt is successful, the message
“Callback Extension XXX” appears on your display panel.
When the party on the destination extension becomes available, you
receive a call back ring. When you answer this call back, the
destination extension rings and your call then can be connected.
■
If the Automatic Callback attempt is not permitted, the message “Not
Allowed” appears on your display panel. See
“More About Automatic
Callback” in this chapter.
If the party on the Automatic Callback destination extension does not
return your call within the time set by the Automatic Callback Return
Interval, the system cancels the Automatic Callback request. For more
information, see the
“More About Automatic Callback” section.
More About
Automatic Callback
These usage tips and limitations apply to Automatic Callback:
■
An Automatic Callback Return Interval, set by the NBX NetSet
administrator, determines the maximum amount of time you can wait
for a call back. The range for this timer is 1 minute to 24 hours with
the default being
12 hours . If the Callback is not received within this
time, the system cancels the Callback.
■
An extension can have up to five Automatic Callback requests
assigned to it. Return call backs are generated in the order that they
were received (FIFO).
■
Events that generate a call back from the destination extension
include: