I used to record telephone calls with a device similar to the one below.
http://www.radioshack.com/product/index.jsp?productId=2104040
I’m now not able to get it to work. When it did work, I would not here the telephone over the speakers when recording and turning the phone on to get a dial tone, but the wave signal on Audacity would fluctuate with the volume of the speaker. Now, I hear the telephone over the speakers, and the wave signal on Audacity is a flat line and nothing is being recorded. I believe I connected the device properly to my PC and telephone, so I’m assuming there is a setting on Audacity that needs to be changed. Any ideas? Thanks.