I have a customer who has two fax machines, both connected to the same line. They use the front machine for sending, and the back machine for receiving. The back machine is a Sharp UX-A1000, which has a digital answering machine built into it. Whenever another place sends a fax to this particular number, the back machine receives it just fine. But - whenever they try to send from the front machine, it winds up on the back machine. Since they are on the same line, I can't figure out why it is doing this. Does anyone have any ideas about what I need to check? Sure would be appreciated!

It hears the CNG tones on the line and picks up. That's so you can connect it to a voice line and it will pick up automatically after you pick up a phone when another fax calls. There should be a setting in the menu to disable the function.

-Hal

Thanks, Hal - I will check that out when I go back on site this afternoon. I thought it was set as an answering machine at first, but when I checked that out, it appeared that it was, indeed, set to be a fax. So I need to disable that setting - would that be called polling, by any chance?

if that doesn't work a exclusion device would do it

something like this viking item we used to install a lot of these in dial up modem days

I think I found the problem with the fax machine in the back warehouse. There is a setting called "fax signal receive" that needs to be turned off. If it is turned on, the machine sits and listens for any fax tones on the line, which includes fax tones sent from the other fax machine. I'm going over there this morning to turn it off, and test. Thanks, guys, for your responses! Skip, I have used those little TG-1 devices in the past - they do work!

Hey Skip, I got lazy and used these most of the time. They cost a little more, but they were so easy to install it was worth the money.