DECT-Extension Call Back

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Тел. : (495) 730-4022 |

DECT-Extension Call Back
Functional description
If the line of extension subscriber who is called by the DECT subscriber is busy, the function makes a call back so that when the busy line becomes available, the calling signal is automatically sent to the calling subscriber for whom a extension call is automatically reserved. If the extension subscriber hooks off the handset after receiving the calling signal, another calling signal is sent to DECT subscriber and finally a call between them is established.
Operating procedure
Extension call back from the DECT subscriber.

A DECT subscriber dials the number of extension subscriber in busy status.
The DECT subscriber dials the call back code (Default:4) while hearing the busy tone.

3 The DECT subscriber hears the service set tone and the followings are displayed on the LCD screen of DECT terminal.

EXT C_BACK

Reg.

4 The DECT subscriber presses the TALK() button for release.

5 If the extension that the call is reserved for released, the DECT terminal rings.

6 If the DECT subscriber presses the TALK() button for answer, the extension that the call is reserved for rings and the followings are displayed on the LCD screen of the DECT terminal.

CALL FROM

STA XXXX

7 If the extension subscriber who rings answer the calling, a call is established.

Extension call back cancellation from the DECT subscriber.

The DECT subscriber presses the TALK() button.
The DECT subscriber dials the call back cancellation (Default:*55) while hearing the dial tone.

3 The DECT subscriber hears the service set tone and the followings are displayed on the LCD screen of the DECT terminal.

C_BACK

CANCEL

4 The DECT subscriber presses the TALK() button for release.

Data generation
Call back code designation

[16.5 One Digit Busy Service]

Interactions
If a DECT subscriber dials the call back cancellation code without a call back, he or she will hear the lockout tone.