iBall 3G USB Modem Airway 21.0MP 49 Launched with voice calling feature. The iBall USB dongle comes with Some nice specifications that sets it apart form other 3G modems in the market. The device is compatible with 2G/3G GSM networks. It can transmit high speed data with Downloading speed up to (HSDPA+) 21Mbps and (HSUPA) Upload Speed 5.76Mbps. It comes with plug and play feature, means there is no need to install driver separately. The Airway 21.0MP 49 has Micro SD card Slot that can take up to 32GB memory card. The most attractive and impressive things about this modem is that, it can make voice calls. Well, its not the first modem that comes with voice calling feature there are several dongles in the market with same feature. It has USB 2.0 interface, internal Antenna and is compatibel with Win2000/Winxp, Win Vista / Win7 / Win8 & MAC OS 10.8.2. The 3G USB Modem Airway 21.0MP -49 also comes with 2G, 3G, EDGE, GPRS connectivity and notification LED. It will be soon available from online retailers .