Ericsson 250 - Manual (Page 14)

DURING CALLS
14
BusinessPhone 250 - Basic Telephone
BusinessPhone 50 - Basic Telephone
COMMON HOLD
Hold Press (pre-programmed)
The line key lamp flashes slowly. The call can be picked
up on any extension within one minute, or else it will
recall on the holding extension.
Line Press to pick up on own extension
or
Pick up on another extension:
Call the extension that put the call on hold
Press