Try "manual dial" if the program lets you - if this works it maybe you need to slow down the autodial numbers - have a look at the manual, it normally means inserting ,,,, (ie comas) into the phone number which slow the dialling.
I have windows XP, Dell 1000 notebook and am trying to use the fax feature on the Dell 942 all in one printer. I also have DSL broadband service. The fax does not work and I was wondering if DSL was somehow interferring with the fax transmission. It scans the document ok into the computer but then when it is dialing I get a message the phone line is in use or not connected. The printer gets connected to the notebook and I cannot filter the notebook because then the DSL does not work. Any suggestions appreciated. Thanks