Mitel 6867i Administrator's Manual page 381

The following table lists the UK tone set cadences.
TONE
Dial
Secondary Dial
Ringing
Busy
Congestion
Call Waiting
Ring Cadence
The following table lists the US tone set cadences.
TONE
Dial
Secondary Dial
Ringing
Busy
Congestion
Call Waiting
Ring Cadence
FREQUENCY (HZ)
350 * 440
350 * 440
400 * 450
400
400
400
-
FREQUENCY (HZ)
350 * 440
350 * 440
440 * 480
480 * 620
480 * 620
440
-
Operational Features
CADENCE (ON/OFF) (MS)
Continuously On
750/750
400/200/400/2000
375/375
400/350/225/525
100/Continuously Off
400/200/400/2000
CADENCE (ON/OFF) (MS)
Continuously On
100/100/Continuously On
2000/4000
500/500
240/260
300/Continuously Off
2000/4000
5-120