Basically, OnSay is a free application that lets you make free calls without a phone number to your Twitter friends. It uses internet connection (Wifi) to make calls.
So, lets see how can you make calls with Onsay :
1. Download Onsay application in your phone. It is available for iPhone.
2. Login with your Twitter account.
3. Lookup your friends to make calls. You can call all those who are having twitter account and are using Onsay.
4. Just start making calls.
It is very easy to use and very easy to make calls. I tried it on my iPod Touch and it works great.
I guess Onsay is currently available for Android or Blackberry phones. We will soon post about how can you make free calls to twitter friends on your Android or Blackberry or windows mobile.
Technology is advancing at a great pace, and if you are happy with just your telecom calls then you are losing a lot of money. Its better to switch to voip for all your calling needs. If you are having a smartphone : iPhone, Android or any other start using mobile voip.
For more info about Onsay, visit Onsay.