Why is my broadband slow?

[billymcmoy]

think i know why but i can't seem to work it out. my phones in my house have stopped working and that's getting sorted. but i don't know if my broadband is slow due to the poor phone line or the ISP? ever since the phones have stopped working the broadband is slow. but i'm still getting a connection just a slow one. i used to have 2.0/3.0 mb but now i get a rubbish 0.5 connection speed! so the phone line is still working just not good becasue other wise the broadband would not work at all. do you think that when the phones get sorted, i will get my high speed broadband back?