Siemens 600Series - Manual (Page 60)

3-2 ROLMphone 300/600 Series User Guide
Note: If you press the Transfer key during a bridged call, your
telephone will be removed from the call.
You cannot bridge a conversation on an extension set up for
Privacy. Also, once you have bridged into a conversation, the
party at that extension can exclude you by pressing the Privacy
key. (See “Privacy” on page 6-2.)
Bridging overrides Do Not Disturb mode. (See “Do Not
Disturb” on page 6-1.)