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Answer problems, Dialing problems, Data transfer problems – ZyXEL Communications Omni 288S User Manual

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Chapter 13 - Diagnostics & Troubleshooting

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Answer Problems

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Problem

Your modem does not auto-answer incoming calls.

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Solutions

1. Make sure the supplied telephone cable is connected to your modem’s LINE

jack and not the PHONE jack.

2. Your modem may not be set up for auto-answer. With the modem in

command state, type ATS0=1 and press Enter to have the modem answer on
the first incoming ring. To auto-answer on a different ring, replace 1 with a
value up to 255. Do not assign a value of 0, which turns off auto-answer,
unless your software can respond to the modem’s RING result codes.)

3. Check that the DTR LED is ON, and that the AA LED flickers with each

incoming ring. If the LEDs do not respond in this way, refer to your ZyXEL
Modem Reference Manual.

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Problem

When you receive a phone call, your modem immediately seizes control of the
telephone line.

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Solution

Your modem may be configured for auto-answering. To disable auto-answer,
type ATS0=0 and press Enter with the modem in command state.

Dialing Problems

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Problem

Your modem does not dial calls.

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Solutions

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Make sure the supplied telephone cable is connected to your modem’s LINE
jack and not the PHONE jack.

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You are using touch-tone dialing on a line that requires pulse dialing. Change
your communications software to use pulse dialing.

Data Transfer Problems

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Problem