Skype IP phoning has become the latest thing at the office. I haven’t tried it just yet, but I’ve been told that it’s quite magnificent. The beauty of it is that you can phone long, yes even global, distances at no charge (except for the money you pay for connecting to the internet anyway). It’s completely free! ..as long as you don’t call actual telephones or cellphones.
Check it out at skype.com and I’ll update with my login info:)