2N Omega Lite - Installation Manual v1.9 - Manual (Page 56)

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DTMF dialling receive parameters
Receiver sensitivity -27 dB
DTMF dialling send parameters:
Frequencies
According to Q23
Send level of lower frequency group -10 dB to -6 dB
Send level of higher frequency group -8 dB to -4 dB
Pulse dialling send parameters:
Pulse duration
60 ms *
Pause duration 40 ms *
Pulse dialling receive parameters:
Pulse duration
30 ms to 70ms
Pause duration 30 ms to 70ms.
FLASH send parameters 100 ms *
FLASH receive parameters 90 ms…150 ms *
* Preset values, can be changed
Modem detection parameters min. -24 dB at 1300 Hz
Fax detection parameters min. -24 dB at 1100 Hz
Dialling tone frequency f = 425 +/-20 Hz
Dialling tone level -5 dB