“Number saving” service is active by default for all prepaid tariff plans. “Number saving” service means possibility of using number in the Operator’s network. The service is provided free of charge during 180 days from SIM-card activation or any refill. If during 180 days subscriber didn’t make any refill 500 Br per day start charging. If subscriber has less than 500 Br (without taxes) on account system charges the rest of the money and subscriber saves the number in Operator’s network for one day. After any refill fee for number saving in the Operator’s network stops charging for the next 30 days. If after 180 days since the last refill or SIM-card activation subscriber has not enough money for number saving on his account, The Agreement on provision of telecommunication services is deemed unilaterally terminated and telephone number returns to the Operator for the further usage.