Thread: useing the comp's phone jack

i figured while i have no leads on some things i'll bring up an idea i've wanted to try a while back .

i was wondering if theirs a way to send sound over the phone line from a computer , obviously its possible XD , but what would i need to be able to

note : i'm not looking to connect 2 computers . its more to make a program to be able to call a normal phone from my comp , w/o using a voip . sounds easy huh ( doubts it will be )

i was hoping for a software approach since i cant really get any hardware ( broke / in debt big time >.< )

There's Skype. I believe comp-comp communications are free. Also you can try Windows Messenger. It has a feature that'll allow you to communicate via the internet for free. Both programs require internet connection, the software, and some sort of microphone/webcam, and speakers (webcam's only needed if you want to have video connection too).

>.< thats almost word for word the same answer i got the first time i ever asked , and it was on a dif forum about a year ago XP

i dont want to be online at the time ( aka no voip )
and would really like to make it my self ( for exp and the fun of it )

There's such programs called "software modems". I don't know how they work, but I doubt you'd be able to do it in pure Java. You can "place" a phone call by sending different signals to the phone jack (technically, if you're good enough you can "place" a phone call by making noises into the recording mouth piece, I don't know if they changed that now, but it should still work because the design of phone jacks haven't really changed). This is completely dependent on your computer having a valid phone jack (NOT Ethernet jack), as well as you finding the correct signals to send (shouldn't be too hard, just need to record some beeps and boops from a real phone).

the signals are easy , if i'm right all i'd need is the sound api and to know the frequency of the tones ( witch can be looked up ).
the problem is how to send those signals to the phone jack ( yes my comp has a normal phone jack , w/o it i wouldn't be online right now ) know of any obscure api's that may have what i'm looking for ?

that just might work ,can u control what pin gets what data sent and read from with that?

actually i just found a solution already in windows.
location = C:\WINDOWS\system32\dllcache\dialer.exe
and it works even =D , thanks for the help though