Pbx/Key System - Cisco UC320W Administration Manual

that the device was removed. You can now connect the new device, which will appear on the
Devices page when it is automatically detected. You can then use the Assign Phones page to
assign the new phone to the user who previously had the other phone.

PBX/Key System

Use the Configuration > Telephony > PBX/Key System
page to choose the operational mode for the telephony
system. Tip: To learn more, use the Help Me Choose
button.
Note: If you change the mode after applying a
configuration, errors may appear on other pages, due to
the feature differences described below. Fix the errors
before applying the configuration.
PBX
In PBX mode, users have no direct access to choose a phone line; instead, a trunk is selected from the
pool of available trunks. When placing an outbound call, you must first press an outbound dialing digit
such as 9. There are no shared FXO (analog) lines (as described for Key System). When you choose
PBX mode, the following features are affected:
• Trunks: Phone service can be provided by SIP/BRI trunks (Voice over IP service) and FXO
(analog) lines.
• Shared FXO Lines: You cannot configure Shared FXO Lines. Note: If you previously configured
your system in another mode, any existing Shared FXO Lines will be removed.
• Outbound Dialing: You can use personal extensions to place calls to an external number.
• Internal Dial Plan: You need to specify the digit that is required for outbound dialing. If you have
more than one trunk, you can specify a different digit for each trunk.
Key System
In Key System mode, users can directly choose an analog phone line by pressing a shared line button
on the phone. All users can monitor all calls on all lines. If a call is placed on hold by one user, it can be
resumed by any other user. When a user presses a shared line button, the line is immediately seized for
an outbound call; you do not have to enter an outbound dialing digit, such as 9. When you choose Key
System mode, the following features are affected:
• Trunks: Phone service is provided by FXO (analog) lines. You cannot configure SIP/BRI trunks
(Voice over IP service). Note: If you previously configured your system in another mode, any
existing SIP/BRI trunks will be removed.
• Outbound dialing: You cannot use a personal extension to place a call to an external number.
Extensions are for internal calls. For outbound calls, use a shared line button.
• Internal Dial Plan: No outbound dialing digit is required. For example, you do not have to dial 9
to get an outside line. Simply select a shared line button.
• Inbound Routing: Configure inbound routing for each trunk on the Shared FXO Lines page. The
Inbound Calls page is unavailable.
Blend
The system functions like a PBX, as described above, but allows the configuration of shared FXO
(analog) lines, as in a Key System. Outbound calls require a steering digit except when a Shared FXO
Line is selected by pressing a shared line button on a phone. Both FXO (analog) lines and SIP/BRI
trunks may be used. All features are available for configuration.
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