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37* z – AASTRA 4420 IP Basic (SIP) for MX-ONE User Guide User Manual

Page 21

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21

Dialog 4420 IP Basic

Outgoing Calls

Callback if all lines are busy

If all external lines are busy (after dialing the digit or digits to get a

line):

6

Press

or

Ô

Callback

press.

Note: France, Finland and Sweden, press

5

z #

Dial the external number and press.

Press

d

Replace the handset to finish the procedure.

When an external line becomes free, you will be called back (recall

ring signal). You have to answer within eight seconds, otherwise

the Callback service is cancelled. While waiting for the Callback,

you can make and receive calls as usual.

u

Lift the handset when you are called back.

The system calls the external number.

Note: Only one Callback can be activated on a busy

external line.

Cancel any single Callback

#37* z #

Dial, enter the extension number and press.

Note: To cancel a single Callback on a specific external

line, dial the digit or digits to get a line instead of the

extension number.