
4 Introduction
• ZyXEL exclusive Kernel Recovery Mode for no hassle recovery
from failed flash uploads - no factory repairs.
Fax Compatibility
• EIA Class 1, 2, and 2.0 Fax commands.
• ITU-T V.17 G3: up to 14,400bps.
• ITU-T V.29 G3: up to 9,600bps.
• ITU-T V.27ter G3: up to 4,800bps.
• ZyXEL Fax AT commands.
Technical Specifications
• Operating mode: auto-dial/answer.
• Flow control: software XON/XOFF or hardware CTS/RTS.
• Configuration settings: software programmable with non-volatile
memory for phone number/profile storage.
• Diagnostics: self test, analog loopback (with self test), digital
loopback, and remote digital loopback (with self test).
• Dialing type: tone/pulse dialing.
• Line interface: 2-wire dial-up or 2-wire leased line.
• Call progress monitoring: dial tone, busy, and ring back detection.
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