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Calling Group Supervisor Telephones
Line Buttons
The 20 or more buttons in the center of your phone are line
buttons (they connect you to lines in the system). The number
of line buttons depends on the kind of phone you have—20 on
the MLX-20L phone, 22 on the BIS-22 and BIS-22D phones,
28 on the MLX-28D phone, or 34 on the BIS-34 and BIS-34D
phones. Two or more of these buttons are labeled either
ICOM (Intercom) or SA (System Access). You have either
ICOM or SA buttons, but not both.
On phones with ICOM buttons, you use ICOM buttons for
inside calls and buttons labeled with phone numbers for
outside calls. On phones with SA buttons, you can
inside and outside calls on SA buttons. You must enter a
dial-out code (usually a 9) before you make an outside call
using an SA button.
If your phone has SA buttons, see the next page; if your
phone has ICOM buttons, turn to page 2-12 (you may or may
not have all the buttons shown). You can program any
unlabeled line buttons on your phone with calling group
features or with user features (see the user's guide for your
phone).
Buttons on Your Phone 2-9
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make both
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