Panasonic CPC-EX manual Tone Name Frequency Timing seconds, Digit Frequency Hz

Section 300-Installation		Chapter 7. Specifications
Tone Name	Frequency	Timing (seconds)
Dial tone	400 Hz	Continuous
Ringing	400 Hz	1 on/3 off
Busy	400 Hz	0.5 on/0.5 off
Voice mail ringing	550/400 Hz at 16 Hz	2 on/2 off
Table 7-18. DTMF frequencies
Digit		Frequency (Hz)
1		697 + 1209
2		697 + 1336
3		697 + 1477
4		770 + 1209
5		770 + 1336
6		770 + 1477
7		852 + 1209
8		852 + 1336
9		852 + 1477
*		941 + 1209
0		941 + 1336
#		941 + 1477

DBS-2.3/9.2-300 DBS Manual - Revised April 2000 7-17