Hi! Since you are good with an .mp3 and don't need a WAV file, I'd highly recommend using a free conference call service to record and download your audio.

I like FreeConferenceCall.com, but my vendor of choice is FreeConferenceUSA.com for four reasons: first, no fees or ads whatsoever. Second, you can choose your own conference IDs, which I love, as you can use a vanity number (mine is AUDIO). Third, after you choose your conference ID and host PIN, you can use your conference calling number anytime--no reservations or bookings needed. Instant conference calls any time you need one on the fly. Fourth, you can record audio with no limit to the length at no charge, and you can instantly download an .mp3 file of the recording when you're done.

For your purposes, dial in as host and then dial in as a participant from a different phone, and leave the second phone on mute while you record your audio. Then end the conference call and hang up. That's all it takes.

If there's anything I can help with, please don't hesitate to ask.

Best of luck,

Jennifer Wenzel
Owner, You Sound Great!
http://www.YouSoundGreat.com