I'm assuming the poster had a secret extension to the existing landline, not an entirely separate line.
I'm assuming the poster had a secret extension to the existing landline, not an entirely separate line.
I wouldn't. This is how the nerdier of my friends got their computers online in the 80's.
In early modem days, a lot of people bought modems without thinking the whole process through. Once they got it home, they realized that either the room with the computer didn't have a phone line, the phone jack was inconveniently located, or after spending $300 on a 150-300 baud modem, they didn't realize they'd have to spend another $200 on a phone line + $50/month for the jack + $xx for dialtone.
Splicing phone lines and fishing them through the walls with a coat hangar became an art. And if it wasn't practical in your house, you sometimes ran a phone line through the trees to your buddy's house.
It was all very educational.