Sony SPP-M937 - Manual (Page 26)

26 US Advanced Features
You can select a ringer type from four types.
1
Press (PGM/SPEED DIAL).
2
Press (#).
3
Press (1) to set the ringer type
of the line 1 or (2) to set that of
the line 2.
4
Press a dialing key, (1) to (4),
to select a ringer type.
You hear the corresponding
ringer tone.
5
Press (OFF).
Turning off the ringer
1
Press (PGM/SPEED DIAL).
2
Press (#).
3
Press (1) to set the ringer type of the line 1 or (2) to set that
of the line 2.
4
Press (5).
5
Press (OFF).
To turn the ringer on again
Follow the instructions described in “Setting the ringer type.”
Setting the ringer type
(1) - (5)