AT&T MERLIN LEGEND Release 3.1 System Programming Manual page 404

Lines and Trunks
Factory Setting
Valid Entries
Inspect
Copy Option
Console Procedure
PC Procedure
Procedure: Ringing Frequency
Console Display/Instructions
1 Select the Options menu.
2 Go to the second screen of the Options menu.
3 Select Ringing Frequency.
4 Enter the slot number of the 016 module.
4–32
Programming Procedures
20 Hz
20 Hz, 25 Hz.
No
No
More
or
type slot no.
Additional Information
_
Press More.
_
Dial or type [xx]
dial slot no. Select
or
PC