Selection of the "right" operator and an appropriate tariff plan - an extraordinary task, disputes and arguments on this theme packed with thousands of Internet forums. For the first time attached to the mobile problem altogether insoluble: in the absence of practical experience and at least some primitive statistics to assess their potential needs is impossible to rely on the advice of friends / acquaintances or recommendation Sellers cellular shops. With vendors is clear: will advise you, for that they get more commission fees, friends tend to agitate for the addition operator, whose services are enjoying themselves. Where is the truth? Scientific treatise, with multi-subscriber profiles, the calculations will not write - employment is absolutely useless for the preparation of more or less exhaustive analysis of the market situation will have time to swap, not once.