link: http://www.spemall.com/Teclast-G18-3G-GPS-Tablet-PC-Android-4-0-OS-MT8377-ARM-Cortex-A9-Dual-Core-1-0-GHz-Phone-Bluetooth-Dual-camera-8-inch-1024-times-768-pixels-IPS-Screen_g.html
Teclast G18 is the first tablet released by teclast which support 3G phone calling and GPS Function, there is a SIM card slot on the tablet, you just need put your sim card in the tablet then you can make phone call and send sms via the tablet, also you can use the GPS funtion in your car.
