If your rate means a prepayment of committed negotiations, the roaming in Russia and abroad, will turn on automatically as soon as the amount of your bill will exceed 600 rubles. In the case of reduction of the account balance up to 300 rubles roaming will be disabled automatically (in some countries it will be available all the time, until the account balance is above zero).
If you are using a system of payment according to the provided services (postpaid system) to enable you international roaming services will have to Deposit a guarantee payment in amount of from 1500 to 1700 rubles. Roaming in Russia is automatically activated.