Panasonic KX-FC379CX Service Manual page 60

7.4.1. DTMF Single Tone Transmit Selection
When set to ON (=1), the 12 keys and transmission
frequencies are as shown.
key High Frequency (Hz)
"1" 697
"2" 770
"3" 852
"4" 941
Note:
After performing this check, do not forget to turn the setting off.
Otherwise, dialing in DTMF signal will not work.
7.4.2. Button Code Table
Code Button Name
04 FAX /START / SET
06 COPY
08 SP-PHONE
09 LOCATOR
0A MUTE
0C AUTO ANSWER
14 RECORD
16 ERASE
18 PLAY MESSAGE
20 MENU
22 HELP
25 [+] VOLUME
key Low Frequency (Hz)
"5" 1209
"6" 1336
"7" 1477
"8" 1633
Code
26 [—] VOLUME
31 1
32 2
33 3
34 4
35 5
36 6
37 7
38 8
39 9
3A 0
3B
When set to OFF (=2), the 12 keys and transmission
frequencies are as shown.
High (Hz) 1209
Low (Hz)
697 "1"
770 "4"
852 "7"
941 "
Button Name Code
3C
3D
3E
47
1B
1C
1E
1F
00
01
59
1336
"2"
"5"
"8"
" "0"
Button Name
#
REDIAL / PAUSE
FLASH
SEARCH
SLOW
QUICK
[ ] NEXT
[ ]PREV
NO INPUT
STOP
KX-FC379CX
1477
"3"
"6"
"9"
"#"