pennyq

There is a “best way” and then there is a “cost effective way”. I do both for work pretty regularly. The best way is to use a mixer/sound board running into a digital recorder. This costs a bit ($300) but it gives you great results. run a cable from the machine making the call (we will assume PC) headphone jack out to a small mixer/sound board. Connect the mixer MAIN OUT output to a digital recorder. Connect a microphone to the mixer (for your voice)Connect AUX1 output to the MIC IN or LINE IN on your computer. You will probably need cable adapters to do this. Send only your voice mic to AUX1 on the mixer. This way the caller hears your nice mic