Similarly, IRQ settings must be set correctly to receive data from the modem.
3.Make sure that your modem is initialized correctly. Your modem may have been initialized to not display responses. You may
4.Make sure the baud rate setting in your software is set to 57600, 38400, 19200, 14400, 9600, 2400, 1200, or 300 bps. An incorrect baud rate prevents the modem from operating properly.
Modem does not dial.
1.Make sure the modem is connected to a working phone line. Replace the modem with a working phone to ensure that the phone line is working.
2.Make sure the phone line is connected to the jack marked “LINE.” Incorrect connection prevents the modem from operating properly. Refer to Section 2.2 for modem connec- tion instructions.
Modem dials but does not connect.
1.Make sure the IRQ setting is identical on both the modem AND the software. Modem and software must be configured identically.
2.Make sure the phone line is working properly. Replace the modem with a regular phone and dial the number. If the line sounds noisy, you may have difficulty connecting to the remote device.
Modem makes a connection but no data appears on your screen.
1.The remote system may be waiting to receive your data before it begins. Try pressing the ENTER key a few times.
2.Make sure the correct data format (data bits, stop bits, and parity bits) and flow control (RTS/CTS) method are being used.
3.Make sure the correct terminal emulation mode is being used (see communication software manual).
4.Make sure the modem is not sharing an IRQ or COM port with another device (see Section 2.4).
High pitch tone is heard whenever you answer the phone.
1.Make sure
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