Ericsson BUSINESSPHONE 250 Manual page 35

GROUP FACILITIES
COMMON BELL The common bell facility allows all extensions of the system
(operator included) to pick up the call from an extension
that has been predefined as a common bell extension.
Dial the common bell pick up code
Please ask your system administrator for the common bell
pick up code.
Lift the handset
You will immediately be connected with the calling party.
If two or more extensions simultaneously attempt to answer
a call from the common bell extension, only the first
extension will pick it up. The other extensions will receive
the "number unobtainable" tone.
This will also happen if you dial the common bell pick up code
and there are no calls waiting at the common bell extension.
Note: You can also program the common bell code on a function key.
BusinessPhone 250 - Basic Telephone
35
BusinessPhone 50 - Basic Telephone