Howto:Disable Function Key Modification On Phone UI

Starting with Version 9, one can actively disable the modification of function keys on the phone user-interface. Thus, only the administrator could setup the function key map through the web user interface.

List of function keys:

UNDEF		=  0,	// not configured
DIAL		=  1,	// "dial"
CF		=  2,	// "cf"
LOCK		=  3,	// "lock"
RINGOFF        =  4,	// "ring-off"
CALLWAIT	=  5,	// "callwait"
CLIR		=  6,	// "clir"
HEADSET        =  7,	// "headset"
PARTNER	=  8,	// "partner"
PICKUP		=  9,	// "pickup"
REG		= 10,	// "reg"
UNREG		= 11,	// "unreg"
SWITCH		= 12,	// "switch"
HOTDESK	= 13,	// "hotdesk"
MWI		= 14,	// "mwi"
TRANSFER	= 15,	// "transfer"
REDIRECT	= 16,	// "redirect"
PARK		= 17,	// "park"
ENABLE		= 18,	// "enable"
ACTIVE		= 19,	// "active"
GROUP		= 20,	// "group"
DIR		= 21,	// "dir"
COND		= 22,	// "cond"
RECORD		= 23,	// "record"
PRESENCE       = 24,   // "presence"

Example: we want to disable the modification of Partner and Pickup function keys.

1) generate a 32bit mask with bits 8 (partner)and 9 (pickup) set:

printf %x $(((1<<8)+(1<<9)))
0x300

2) Set funcion key lock readonly mask

config add PHONE USER /funclock-ro-mask 0x300

3) Save and activate

config write
config activate

From now on, the function keys which cannot be viewed and modified will be marked by a leading asterisk (*) in front of their name in the Function Keys screen.

To return to default mode, where all function keys can be viewed and modified through the phone user interface as well, invoke:

config rem HONE USER /funclock-ro-mask
config write
config activate

See Reference7:Fine_grained_function_locking for details.