Siemens 300 Series User Manual page 57

To put a call on
private hold
To connect to the
call again
Press the Private Hold (HOLDPVT) key. If you
have a PRIVACY key, its status light turns on.
OR
Press the PRIVACY key, or press TRANSFR
and dial # 2. The PRIVACY status light turns
on.
Press the HOLD key.
The status light flashes next to the line key that
you have put on hold.
Press the line key next to the flashing status
light, or lift the handset and press the line key.
Using Your Phone 2–19