Outgoing Calls
Dialog 4420 IP Basic20
Monitoring
You can monitor the progress of an outgoing call.
With the handset on hook:
z Dial the number.
Press
When the other party answers:
u Lift the handset.
Press to terminate a monitor call.
SOS calls (Emergency calls)
Note: The number for SOS calls might vary between
countries.
z Dial the SOS number.
Press
If this feature is enabled it is still possible to make an emergency
call even if the status lamp is lit. If a dialtone is heard it is possible to
make the call.
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