Software for consecutive interpretation?

Hello. I'm a translator/interpreter, though all of my life I work mainly doing document translations. When I do over the phone interpretation I get nervous, especially when doing consecutive interpretation. All I need is basically a good software that could write down what the caller is saying, just for me to look at it instead of taking notes. That's the problem: I'm bad at taking notes. Once I see something on the screen, no matter if it's the source language, I can easily translate it. What kind of software or technique should I be using for this? Perhaps just my phone on loudspeaker and using google translate? or are there more effective methods?