GET 1 subscriber.by-imsi-901991234567891.msisdn GET_REPLY 1 subscriber.by-imsi-901991234567891.msisdn none SET 2 subscriber.by-imsi-901991234567891.msisdn 555666 SET_REPLY 2 subscriber.by-imsi-901991234567891.msisdn OK GET 3 subscriber.by-imsi-901991234567891.msisdn GET_REPLY 3 subscriber.by-imsi-901991234567891.msisdn 555666