Tones (AlphaCom)
From Zenitel Wiki
Tone signals used in AlphaCom:
Timeslot Freq. Level Cadence Tone -------- ----- ------------------ -------------------- ----------------------------- Ts 0 500Hz 2.5V Peak-to-peak Continous Connection/disconnection tone Ts 1 400Hz 2.7V Peak-to-peak Continous Dial tone Ts 2 500Hz 2.6V Peak-to-peak 32 ms on, 32 ms off Failure/ringing tone Ts 3 500Hz 0.45V Peak-to-peak 100 ms on, 100 ms off Success tone, muted Ts 4 500Hz 2.6V Peak-to-peak 100 ms on, 100 ms off Success tone Ts 5 500Hz 0.5V Peak-to-peak 200 ms on, 200 ms off Busy tone, muted Ts 6 500Hz 2.7V Peak-to-peak 200 ms on, 200 ms off Busy tone Ts 7 533Hz 1.3V Peak-to-peak 750 ms on, 12 ms off Off-hook/handset dial tone
The signal levels was generated on an AMC board (MC 68000 based) and measured on an AGA output, terminated with 600 ohms onboard.