Panasonic DBS-576 Technical Manual page 340

FF2: Trunk Programming (T1 CO)
Introduction
Ring Frequency
(all CPCs) - Version 1.0 or higher
Set the ring frequency for incoming calls on the T1 channel. Affects ringing
0
pitch on digital phones.
System
Configuration
FF1
System
FF2
Trunks
FF3
Notes:
Extensions
Related Programming:
FF4
FF-/Soft Keys
FF5
Groups
FF6
TRS/ARS
FF7
Applications
FF8
Maintenance
Appendix A
Appendix B
Page 2-92
FF2 2 BSSCC
BSSCC: T1 (CO) Channel Position
B=Cabinet no. 1-6
SS=Slot no. 01-12
CC=Channel no. 01-24
DBS 576 (USA) issued 05/20/98
02 08 Hold (0-6) Hold
0=No Ring
1=400/562 Hz (default)
2=1000/1340 Hz
3=400 Hz
4=800/1040 Hz
5=1040/1320 Hz
6=660/1320 Hz
Section 400-Programming
$ 
 "F-'
576-13-400
Introduction
0
System
Configuration
FF1
System
FF2
Trunks
FF3
Extensions
FF4
FF-/Soft Keys
FF5
Groups
FF6
TRS/ARS
FF7
Applications
FF8
Maintenance
Appendix A
Appendix B