...Modem not responding

When I power the modem, M1213A, the red led comes on.
When I connect the modem to the serial port, the red led gets turned off.

I am not able to establish any AT connection with the modem.

Any great ideas? Thanks.

Why did you post this in the IP topic?

If you look around the forum, you can find answers for your problem.

Best Regards,

tom