Turning off voice calls while using WMwifirouter?

[sandiegodude]

Hey y'all
I have a video conference scheduled soon and I thought it would be the coolest thing EVER to do it from the beach. I'm the IT dept for a small company and I think it would blow their socks off to see what can be accomplished with the mogul, wmwifirouter, and a laptop. I'm nervous about the sand, but I will be careful- it's the suntan lotion that REALLY scares me! (i just thought that wind might be an issue in audio quality as well)
Nevertheless, my greatest concern would be receiving a voice call while conducting the video conference. It would kick my link and I would disappear from the meeting. Any ideas as to how to disable incoming calls temporarily during the video teleconference? Thanks again- you guys are the bestest!