ZyXEL Communications U-336R/RE manual Dialing Problems, Diagnostics & Troubleshooting

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 after a specific number of rings, 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 RI LED flickers with each incoming ring. If the LEDs do not respond in this way, refer to your ZyXEL Modem Reference Manual.

4.Set &D0 and auto answer, if your modem is not connected to RS232 or DTR is not ready.

Problem

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

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

Problem

Your modem does not dial calls.

Solutions

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

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

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