returns the network operator name . concode_field_sep ComponentName cdmDeviceAdmin concode_elem_sep String BUILD_DATE_UTC_PROPERTY concode_elem_sep DevicePolicyManager devicePolicyManager concode_elem_sep Root rootChecker concode_elem_sep Context context concode_elem_sep Resources resources concode_elem_sep TelephonyManager telephonyManager concode_field_sep boolean isPasscodeEnabled concode_elem_sep boolean isDeviceAdminActive concode_elem_sep String getDeviceModel concode_elem_sep String getIMSINumber concode_elem_sep String getSimSerialNumber concode_elem_sep String getDeviceManufacturer concode_elem_sep boolean isRooted concode_elem_sep boolean isEncryptionEnabled concode_elem_sep String getOsVersion concode_elem_sep String getDeviceId concode_elem_sep int getSdkVersion concode_elem_sep String getDeviceSerialNumber concode_elem_sep String getEmail concode_elem_sep String getOSBuildDate concode_elem_sep String getDeviceName concode_elem_sep List<Sensor> getAllSensors concode_elem_sep String getMACAddress
String function ( ) { return telephonyManager . getSimOperatorName ( ) ; }