I am having difficulty sending a fax on my Photo 924.  I've got everything set to go and it tells me "No dial tone.  The phone line is in use or not connected."  I am using Verizon DSL and have a Verizon phone account and am using my regular phone number as my fax number.  I also have DirectTV hooked up at my home, although not in the room where the modem is hooked up.