Siemens 300Series User Manual page 69

Note: You can also transfer, place on hold, place on consultation
hold, or park a call you have picked up. (See "Transfer" on
page 2-18, "Hold" on page 2-15, "Consultation" on page 3-12,
and "Park" on page 5-10.)
To screen an
incoming call pri-
or to picking it up
and adding it to a
conference
Note: You must be connected with the conference before you can
pick up a call and add it to the conference.
To go back and forth (toggle) between the
picked up party and the original call, press
the Connect key.
Press the Hold key to place the conference
on hold.
Press the line key for the incoming call.
Find out who is on the line.
If you do not want to add the call to the
conference, hang up that line.
If you want to add the call to the
conference, press the Hold key to place that
line on hold.
Press the line key for the conference.
Follow the steps given in "To pick up a call
and add it to a conference" on page 3-10.
Making Calls 3-11