I got myself a mtnl sim for my iPad considering it the plans are better priced than its competitors and bsnl coverage should be a great boon while travelling. However I have a peculiar issue. The Internet connectivity is great as long as there is a 3G signal available. But once the 3G signal is gone, it refuses to work on edge mode. Infact even with full signal strength the device will not connect in edge mode. I tried the sim on a friends nexus 4 and the issue What could the issue be that prevents mtnl from connecting in edge mode on the nexus and ipad?Please help if anyone has any suggestions.