My fax machine is recognizing my home number which is line 1 in our house. I need it to recognize line 2

Most newer fax machine seem to short line 1 and 2 together and this will cause a VOIP modem "called an eMTA" to go off hook. Your fax machine should have come with a phone jumper that has only a single line "2 wires inside it", you should be able to use that jumper to attach your fax machine to your house phone wiring. If you use a standard phone line jumper it has both lines "4 wires" and can cause your eMTA modem to go off hook which could be why it was disconnected.

You need to set your phone to pick up later than the fax machine. set it to pick up on the 4th or 5th ring, set the fax to pick up at 2 or 3. Better yet, get a distintive ring # set up by your phone co. then the fax will only recognize that ring.

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

Chances are that your fax machine is setup to either not answer the phone at all, or set to answer on a special multi-ring setting (which is available with some fax machines). Go into your fax machine settings and make sure
1-That it is set to answer the line and take faxes
and
2-That is recognizes regular telephone ring tones and isn't set to anything special either by accident or design.

You can buy a 2 line phone, but to use the fax/dsl line for voice, you will also need a line sharing device.

"The stick" is a good brand....

All it does is recognize if an incoming call is a fax or a voice call. If fax it would go to a fax port on the stick. If voice, it comes out the voice port which you can call on.

The same rules apply to this line....if something is using it, the next call will get busy......But now you could have the phone company "Hunt" your line 1 to line 2 (fax/dsl) if line 1 is busy.......hence...2 incoming lines....

You can set your fax machine to answer in 1-15 rings or you can set it to MANUAL so that to get a fax you will have to press START.

No fax machine can actually tell the diference between a phone call or a fax coming.in.

There are devices called fax/phone switches, but they are unreliable.

I set my fax on auto answer with a short number of rings. My answering machine is set up to ring more. If I am receiving a fax it picks it up; if not, the answering machine comes on after the designated number of rings. Thus far this has worked for me. Good luck.

Fax machines are designed to have their own dedicated fax line.

Anything else is a **** shoot.

here is the manual look for chapter 6 page 104

http://www.retrevo.com/search/v2/jsp/downloadPage.jsp?doc=ab7afe965f3f13c1eb17fc47e69d8294&q=Brother+FAX-2820

Most fax machines do not operate well on digital lines.
Contact your provider and see what fixes they have for your specific fax machine.
Most fax machines still require an analogue line.

If you actually have a 2 line setup with 2 #'s each with it's own separate line, it's wired backwards. Otherwise (distinctive ring, etc) the machine has to be capable of and set-up to recognize which ring pattern is a fax call.
Also, you have to enable auto-answer on the fax machine.