Internet telephony service Jactr lets you add a widget to your web site that lets visitors contact you over the phone. Now Jastr is launching a new service that routes telephone calls over the internet whether you're taking the time to click a button on a web site or not.

Here's how it works. When someone views your Jaxtrr profile, they can click a "Call Me" button. Jsxtr will then bring up a local phone number they can call. So if you're in the US and the person who wants to call you is in China, they'll get a Chinese phone number. Jaxtr makes the connection over the internet, but once you've got a number, you can use it any time you like. No computer necessary.

You can call other Jaxtr users for free, or purchase credits (called "Jax") which you can use to make cheap long distance calls.