Siemens HiCom 150 E Office Operating Instructions Manual page 8

8
You are engaged in a call and would like to
announce and transfer it to a group of
users with a speaker call (Release 2.2 and
later)
( )
Press the key.
8 0 *
Enter the code 8 0.
Dial the group's station number and an-
nounce the call..
After a member of the group answers:
replace the handset to transfer the call.