Siemens 300 Series User Manual page 84

If you are a member of a com group and want to make
intercom calls to the same member often, you can set
up an auto intercom repdial key. To do this, set up a
repdial key with the Intercom feature access code
( * * 6) followed by the com code of another member
in your group. (See "Repertory Dialing (Repdial)" on
page 3–23.)
Note
A com group speaker call will override Forwarding,
Do Not Disturb mode, and both Station and Pilot
Hunting. (See "Forwarding" on page 5–3, "Do Not
Disturb" on page 6–3, and "Hunt Groups" on page
7–7.)
You cannot transfer a com group speaker call or place
it on consultation hold. In addition, you cannot dial an
account number during a com group speaker call.
If the member you are calling is busy on another line,
the call is converted to a regular call.
3–20 ROLMphone 300/600 User Guide