need for you to observe the line status continually for availability. You may have only one Call Back active at any time.

Operation

1.Press a busy (solid red LED) outside line or outside line group button, or dial an outside line access group number (9, 800-806, 740 – 755).

2.You will hear busy tone and the display will read:

CO LN BUSY

XXX

cbck

 

3.Press [cbck] Interactive Soft Button or Dial [#] on the dial pad.

4.You will hear a confirmation tone and the display will read:

CBCK TO LINE XXX

5.A few moments later, the display will return to an idle state.

6.When the selected outside line, or an outside line in the selected outside line group, becomes available, you will hear fast ringing at the extension and the display will read:

CBCK TO LINE XXX

reply del

7.Press [reply] to be connected to the available outside line and dial as usual or

8.Press [del] to delete the outside line callback.

Call Back – Extension

[cbck]

When you call an extension that is busy, in Do Not Disturb (DND), or idle, you can use this feature to queue your call so that it will be placed as soon as the extension is available (for busy or DND extensions) or the extension user returns (for idle extensions). When you send a Call Back to a busy extension, the Call Back process will begin when the busy extension hangs up. When you send a Call Back to an idle extension, the Call Back process will begin once the user performs an operation at that extension and then hangs up.

Operation

1.Dial the extension number of the busy extension.

2.If the extension you are calling is in Tone Ringing Mode, the display shows:

EXT XXX cbck msg

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Vertical Communications DX-80TM manual CO LN Busy, Cbck to Line, Call Back Extension