Russia - data and voice cards needed.

[NFH]

Originally Posted by inquisitor

I think there is some geographic limitation as the data allowance can only be used in parts of Russia, but except for that a very easy process.

Russian networks have national roaming within the same network, a bit like the US networks used to do until a few years ago. You pay roaming charges if you use your SIM card in a region other than the one where you bought the SIM card. A few more expensive tariffs and data bundles (including some suitable for short-term visitors) have no national roaming surcharges.