I need to record a certain upcoming telephone conversation and would like to have it record directly to my computer. I have all the nessecairy software to do so. What I need help with is the electrical aspect of the project. The only audio inputs I have on my computer (I don't know the size of the jacks) are the standard Microphone and Line In jacks located on most motherboards. To build this device, can I just hook the two audio wire on a telephone to whatever size jack is needed or do I have to build a circuit for this?