I'd like to use my laptop for an external extension when I am out of the office. The 3cx and other softphones work but I don't have a microphone on my laptop. Any recommendations? I have an old one from Plantronics that I can't get to work with Vista. I will admit I haven't put much time into it but I should have been plug and play. Plus it's rather large to carry around. Does anyone use a bluetooth one? There are so many brands and models with pricing all over the place. I don't want to spend a lot ($30US?) unless you say it's necessary.