
WAVECOM Monitoring System W-SPECTRA, W-SPEED Manual V1.1.0 Modem and FAX Modes
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1. PSTN dial tone
2. Calling modem DTMF
3. PSTN rings back tone
4. 2100 Hz phase reversal answer tone
5. 1800 Hz phase reversals tone (calling)
6. 600 + 3000 Hz phase reversals tone (answer)
7. Training sequence, half-duplex (answer)
8. Sync sequence (calling, answer)
9. Training sequence (calling)
10. Sync sequence full-duplex (calling, answer)
11. Second training sequence (answer)
12. User data
Modulation Types
The table below lists the various ITU fax and modem modulation modes.
User Input
Transmission
Format
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