Internet is the best means of communication but, it is not possible to carry a PC connected to the internet everywhere. Hence, people started using GPRS by connecting mobile phone to their laptops. But, the GPRS connection is usually very slow. Recently, there has been a breakthrough in the GSM world after the innovation of 3rd generation of mobiles which facilitate mobile broadband.
This form of internet can attain a speed of 100+kbps and ensure smooth internet experience. Live video streaming can also be done with this internet, but with a low quality because of less bandwidth.
Also, the 3G technology supports video calls. You can set up a video conference with your mobile phone, you can see the other person live talking to you!