Grandstream Networks UCM6510 IP PBX User Manual page 220

Call Park
Audio Mix Record
DND/Call Forward
Do Not Disturb (DND) Activate
Do Not Disturb (DND) Deactivate
Call Forward Busy Activate
Call Forward Busy Deactivate
Call Forward No Answer Activate
Call Forward No Answer
Deactivate
Call Forward Unconditional
Activate
Call Forward Unconditional
Firmware Version 1.0.1.12

Default code: #72.

Enter the code during active call to park the call.

Options
Disable
Allow Caller: Enable the feature code on caller side only.
Allow Callee: Enable the feature code on callee side only.
Allow Both: Enable the feature code on both caller and callee.

Default code: *3.

Enter the code followed by # or SEND to start recording the
audio call and the UCM6510 will mix the streams natively on the
fly as the call is in progress.

Options
Disable
Allow Caller: Enable the feature code on caller side only.
Allow Callee: Enable the feature code on callee side only.
Allow Both: Enable the feature code on both caller and callee.

Default code: *77.

Default code: *78.

Default Code: *90.

Enter the code and follow the voice prompt. Or enter the code
followed by the extension to forward the call.

Default Code: *91.

Default Code: *92.

Enter the code and follow the voice prompt. Or enter the code
followed by the extension to forward the call.

Default Code: *93.

Default Code: *72.

Enter the code and follow the voice prompt. Or enter the code
followed by the extension to forward the call.
Default Code: *73.
UCM6510 IP PBX User Manual Page 218 of 277