World DAA Database
Your online resource for global wireline compliance data

Parameters for selected country Submit updates | Search again

Country	Switzerland
Dial
Pulses for digit 1..9,0	1..10
Make/break ratio	60/40 or 66/33
Pulses per second	10
Interdigit time (ms)	900
DTMF power (dBm)	-6/-8
DTMF on/off time (ms)	144/144
Ring
Ring frequency (Hz)	25 or 50
Ring voltage (Vac)	25-90
Ring threshold (Vac)	8
Ringer impedance (ohms)
Seizure
On-hook voltage (Vdc)	43-57
Min. on-hook time (s)
Min. off-hook delay (ms)	30
Min. blind dial delay (s)	3
Max. answer wait time (s)
Tones
Tx level (dBm)	-10
Caller ID type
Billing tone	12kHz, differential
Calling tone	No
Guard tone (Hz)	1800
Termination
Impedance (ohms)	270 + (750 || 150nF)
Type approval	CTR
Advisory note	ATAAB
References
Regulatory body	R&TTE
Documentation