How do I get dial tone so I can fax on HP 2840 all in one?

SOURCE: Fax problem

I want to make sure I understand this completely. You get no dial tone from the fax machine when hooked up to VOIP. In the past, was there an audible dial tone from the fax, or did it just dial silently and give you an error if there was no tone? When you said you got a dial tone by connecting a phone to the ext phone port of "the machine" did you mean the fax machine? If you get a dial tone by running a phone through the fax machine, then the line is good. I have used a fax machine over Sunrocket before they went defunct, which used the same technology base as Vonage - so it should work. If you used to get an audible dial tone when using the fax, and no longer do, and you are geting a dial tone on a regular phone that is connected to the ext. port of the fax machine, then the problem has to be in the fax machine itself, not the VOIP. If you can verify that, we can go from there.

SOURCE: no faxes outgoing

Turn the machine round and make sure that you haven't fitted the telephone cable into the phone slot. if you have remove the cable from the machine and plug into the other slot that is usually indicated by a letter L. Once done this try the on hook dial and hopefully there will be a dial tone. If there is not then try a different telephone cable if still the same problem then unfortunately the modem card is faulty and will need replacing.

Thanks J

SOURCE: Fax ring tone or ring leader

im sorry to say the machine you have does not have DRD distinctive ring detect.

SOURCE: Fax will not send or receive

Hi
You need to contact comcast for this issue and get a seperate phone line to which u need to plug in the allinone. This issue may exist most of the Comcast customers.
thx

SOURCE: Fax machine not sending documents

A) Run the fax test on the printer itself to see if it's connected properly and has an active phone line.. HP All-in-one printers still make a dial tone sound even if they aren't connected to a phone line. To run the test 1)..Press the SETUP button. Press the down arrow button until "Tools" is highlighted then pres OK. 2) Press down arrow key again and select "Run Fax test" The printer will then print out the results. It will tell you if anything fails. If it does, the correct the problem it mentions. IF everything passes, then the problem is likely your cable phone line which is a "Digital" and Fax machines still use an analog signal. Here is what you can try to overcome the deficiencies in a cable phone system. 1) Set your fax speed to Medium 2) Turn your ECM (Error correction mode) OFF
To set your fax speed, Press the SETUP button again.. Press your down arrow again until you find "Advanced Fax Settings" and the press OK.. arrow down until you find "Fax Speed" and hit OK. Then choose Medium (14,400) and press OK This will take you to your previous menu (Advanced Fax setings).. Find "ECM Choose OK again.. Then choose OFF and press OK. Press the X button on your printer's control panel and then Retry your fax.. Hope this helps