Positioning System User (AOP) is available to subscribers of MegaFon network in Moscow for six months already, now something similar will be put into test operation in the MTS network expected in the fourth quarter of this year. Hardware and software systems are adjusted and tuned, but many projects already in operation. We managed to register in the system (thanks for helping Department of telematic services MTS ")," twist "menu / command and appreciate the convenience and functionality. I am pleased to share some preliminary estimates.