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(V.22bis/V.22 or Receive Originate: 2400 Hz
Bell 212A Standard) Receive Answer: 1200 Hz
Carrier Frequencies,1270 Hz Mark, 1070 Hz Space for
300 bps Transmit Originate
(Bell Standard) 2225 Hz Mark, 2025 Hz Space for
Receive Originate
2225 Hz Mark, 2025 Hz Space for
Transmit Answer
1270 Hz Mark, 1070 Hz Space for
Receive Answer
Carrier Frequencies 980 Hz Mark, 1180 Hz Space for
V.21 Transmit Originate
1650 Hz Mark, 1850 Hz Space for
Transmit Answer
1650 Hz Mark, 1850 Hz Space for
Receive Originate
980 Hz Mark, 1180 Hz Space for
Receive Answer
V.23 390 Hz Mark, 450 Hz Space for
Transmit Originate
1300 Hz Mark, 2100 Hz Space for
Transmit Answer
1300 Hz Mark, 2100 Hz Space for
Receive Originate
390 Hz Mark, 450 Hz Space for
Receive Answer
Carrier Frequencies Fax
V.21 CH2 Transmit Originate: 1650 Hz Mark,
1850 Hz Space
(Half Duplex) Transmit Answer: 1650 Hz Mark, 1850 Hz Space
V.27ter Originate/Answer: 1800 Hz
V.29 QAM Originate/Answer: 1800 Hz
V.17 TCM Originate/Answer: 1800 Hz
Transmit Level -10 dBm (dial-up)
Frequency Stability ±0.01%