Datawind UbiSlate 7CX 256MB & Below 2G Calling Rs. 1760 Screen Size (in cm):17.78(7) RAM:512 MB and Below Storage:256MB & Below Voice Call:Yes Rear Camera:No Front Camera:No Warranty Period:12 Months Brand Warranty http://www.infibeam.com/tablets/dat...let-non-android/P-poel-32297072592-cat-z.html