Hot Line; Emergency Mode - Ericsson Dialog 4187 Plus User Manual

Other Useful Features
76

Hot line

Ask your system administrator if you require this feature.
Delayed Hot line
When the handset of the delayed Hot line phone is lifted, a Call
Duration is started. If no digit is pressed before time out, a call is
automatically generated to a specific extension or external line. If a
digit is pressed before Time out, the phone works as an ordinary
phone.
Direct Hot line
The same feature as described above, but with no delay. Only Hot
line calls can be placed from this line. To be used e.g. as alarm
phone, door phone etc.

Emergency mode

In the event of an emergency, the operator can set the telephone
system into Emergency mode, during which only preprogrammed
extensions are permitted to make calls.
Dialog 4187 Plus