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CHAPTER 4. ANSWERING AND HANDLING CALLS ON THE PHONE 4-13
Using SDNs
An SDN is a digital feature phone button configured as a extra line that refers to a PDN of
another user. When a call comes in to the primary user’s phone, both the primary user’s PDN
and your SDN ring, and either you or the other user can pick up. SDNs can be set and changed
by your system administrator only.
Example: An administrative assistant has an SDN mapped to her boss’s phone. When a call to
the boss comes in, it rings both the boss’s phone and the assistant’s SDN. The assistant can
answer and screen the call and put it on hold. The assistant can then let her boss know who is on
that particular line, and the boss can take the call simply by picking up the phone.
You can make outbound calls on an SDN line.
Using custom-mapped Strata CS commands
You can map Strata CS features to your digital phone’s programmable buttons. For instructions,
see “Configuring a digital feature phone” on page 18-13.
Once a feature has been mapped to a programmable button, you can simply press the button to
activate the feature. For example, pressing a button mapped to the Do Not Disturb feature turns
on the Do Not Disturb personal status.
Speed Dial with illuminated buttons
If your system has enabled the Busy Lamp Field (BLF) feature, and you map a programmable
button to Speed Dial a Strata CS user, then that button’s LED lights up whenever the target user
is on a call. This lets you see whether users are available to take your calls.
The light illuminates only when the target user is on a call; it does not illuminate for other types
of Strata CS unavailability such as Do Not Disturb. The Speed Dial target must be a Strata CS
user. BLF does not work with Speed Dials aimed at other types of extensions such as queues or
auto attendants.
Note: With BLF enabled, do not confuse illuminated Speed Dial buttons with illuminated SDN
buttons. Unlike with SDN, a lit Speed Dial button does not indicate an incoming call and you
cannot press it to join the call. Pressing a lit Speed Dial button would place a Speed Dial call to
the (busy) user.