AASTRA 4147 Medium for MX-ONE (TSE) User Guide EN - Manual (Page 59)

59 Dialog 4106 Basic/Dialog 4147 Medium
Other Useful Features
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 or when
the Line key is pressed, a Call Duration timer 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 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 exchange
into Emergency mode, during which only preprogrammed
extensions are permitted to make calls.