Where can I find the feature code list for a digital phone?

Facility Access Keys for Digital Phone - Nortel M3904

Service Features	Access	Cancel
Campus Telephone Operator	0
Outgoing Calls	9 + PhoneNum
Outgoing Calls (hide Caller-ID)	9 + 133 + PhoneNum
Transfer	{Trans} + PhoneNum + {Connect}
Conference	{Conf} + PhoneNum + {Connect}
Call Waiting - Answer	[Hold] + [CallWait]
Call Hold	Call already online + [Hold]
Call Hold - Continue Call	[Prime]
Call Pick Up - Group	[SPKR] + {Pickup}
Call Pick Up - Direct	[SPKR] + *23 + PhoneNum
One Touch Memory - Entry	[AutoDial] + PhoneNum + [AutoDial]
One Touch Memory - Calling	[SPKR] + [AutoDial]
Call Forwarding - All Calls	{Forward} + PhoneNum + {Done}	{CheckFw} + {CancelFw}
Call Forwarding - No Answer	[SPKR] + *48 + StationCtrlPasswd + 1 + PhoneNum + #	[SPKR] + *48 + StationCtrlPasswd + 1 + OwnExtn + #
Call Forwarding - Busy	[SPKR] + *48 + StationCtrlPasswd + 2 + PhoneNum + #	[SPKR] + *48 + StationCtrlPasswd + 2 + OwnExtn + #
Call Park - Entry	Call already online + {Park} + {OK}
Call Park - Access	[SPKR] + *20 + ParkingExtn
Ring Again (Call Back)	{RingAgn}
Last Number Redial	[Prime] + [Prime]
Stored Number - Save	Call already online + [Stored#]
Stored Number - Redial	[Stored#]
Boss & Secretary Intercom	[Hotline]

[ ] = Function Keys on the left and right side of the LCD display.
[Prime] = The GREEN Function Key.
{ } = Feature Keys below the LCD display, their key label appears on the LCD when appropriate.
StationCtrlPasswd = Station Control Password, the default is 123123.