To transfer funds to pay for the mobile phone through the service "Mobile banking" (for example, service of Sberbank of Russia, as the most popular), you need to send an sms message. It uses a special number - 900.
In the sms message, depending on your mobile operator, type: BEELINE or BEELINE, MEGAFON, or MEGAFON, MTS or MTS.
Next is the payment amount. Enter the numbers in your sms message, for example, 450. The amount of the Deposit will be respectively 450 rubles. Minimum payment - 100 roubles, maximum 10 000. If you do not specify a specific number, payment amount minimum amount (100 rubles).
After that, if necessary, enter the last 5 digits of your card. This is done only if "mobile banking" feature for several payment cards.