Ether Voip hack for free calls

We had just noted from voipguide about a new service "Ether" which will let you make free calls to many countries including UAE.
The service is run by AT & T.
Ether is actually a paid to talk service, where experts can charge people to talk to them. Like for example, I can setup a account on Ether with the following description.

Listing Name: Financial Expert
Tags: Guidance on investments
Pricing Plan: Free until "*"; $0.01 per minute; Repeat

That means I can help you plan your investments. If you want to contact me, just dial my ether number 1-888-MY-ETHER ext. 02703XXX. Consider you live in Newyork and need some expert help, so you can contact me and I will charge you 0.01 cents per minute. Ether takes 15% commission.

Now this is all what Ether works on. Now the hack to convert this to a totally Free Calling Haven.

Lets see how we do it.

1) Go to Ether and register.
2) Add a phone number. currently Ether offers about 20 odd countries. India and UAE is accepted which is extremely surprising.
3) While you add a number, rememeber to chose the option,
Allow customers to start the call for free. The rate below will begin when you press *.
Now this is the hack. Remember this.
4) Now Ether will assign you a extension number like 1-888-MY-ETHER ext. 02703XXX.
5) If someone wants to talk to you, give them this number, 1-888-MY-ETHER (1-888-69-38437) and ask them to enter your extension at the prompt.
6) your call will be connected but remember dont press *, coz that will trigger the billing :-)

Talk as much as you want, its all FREE. The only worry is it's a USA number, however they are various ways to call USA number for Free. You can use Earthcaller, icall or Truphone to make calls to that Ether number.