Awesome phone under, 10k price braket.
Xiaomi has endowed the Redmi 2 with a comparatively modern chipset. Even though the clock speed of the processor is lesser than that of the one on the Redmi 1S, performance wise, the new processor is much better.
Redmi 2 offers good call quality and signal reception and I did not encounter issues while making calls even in areas where cell signal is relatively weaker.