1) power on the phone
2) **##5403 FCN FCN
3) volume keys select function. 

NAM SELECT
HOME SID
MIN
ACCOLC
EXP
LOCAL USE
SCM
FPCH
GIM
OPTION 1-8


HOME SID

system data programming
power up
**##1752 fcn fcn

NAM-2
NAM-3
NAM-4
EMERGENCY CODE 1
EMERGENCY CODE 2
BATT (LOW)
BATT (PWR)
DTMF BURST


ESN chip is LC46-215 (93C46). First byte of ESN at $C100, second at $0000,
third at $1041, and fourth at $00EE