Mitel 6863i Administrator's Manual page 366

Mitel 6800i Series SIP Phone Release 4.0.0 SP2 Administrator Guide
If the "Play a Ring Splash" parameter is enabled, the IP phone plays a short "ring splash"
when there is an incoming call on the BLF monitored extension.
Note: This global setting is not dynamic. Changes to this setting will take effect only
after the phone has been reboote
5. Click on Operation->Softkeys and XML
or
Click on Operation->Programmable Keys
or
Click on Operation->Expansion Module <N>
Note: Depending on your phone-model, the key configuration screen displays.
6. Select a softkey or programmable key to configure.
7. In the "Type" field, select "BLF" (Asterisk), "BLF/List" (BroadSoft BroadWorks).
8. (For the 6867i/6869i Softkeys) In the "Label" field, enter the name of the person who's
extension you are monitoring (if "Type" is BLF).
Note: If BLF/List type is selected, no label value is required. The BroadWorks BLF
List name is configured in the "BLF List URI" field instead.
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