ZyXEL Communications U-90E, Руководство пользователя

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U-90E Data/Fax Modem
Troubleshooting
15-5
2. You are using touchtone dialing on a line that requires pulse dialing. Change your
communications software to use pulse dialing.
3. Unplug the telephone line cable from the computer and connect it directly to a
telephone handset. Check for dial tone. If there is none, the problem is in the
telephone line. Call the service provider.
15.5 Data Transfer Problems
Problem
You can make a data connection with a remote modem, but encounter frequent errors
during data transfers.
Solutions
1. Re-dial the call. (The telephone connection may be poor.)
2. Your modem and communications software may be configured for different
flow control methods. Be sure your modem and software are both using
hardware (RTS/CTS) flow control or software (XON/XOFF) flow control.
3. To verify that your modem and communications software are using the same
flow control method, type AT&T8 and press the Enter key with your modem in
the command state. You should see a smooth “stair-stepping” ASCII test
pattern flowing diagonally across your screen.
15.6 Connection Problems
Problem
Your modem disconnects while communicating with a remote system.