1.knowing what version of software your phone has and imei number.
2. tapping another person call.
3. use more than three networks in one phone. 4. Identify original phone when buying. 5. cut flashers credit. 6. copy another person caller tune. 7. destroy your stolen handset. 8. use more than three networks in one handset. 9. convert your phone text messages to pdf or word doc. 1o. make conference calls. 11. cannot receive or make calls. 12. make international call at low cost. 13. stop people from using your phone to make international call. 14. no network coverage. 15. know the expiry date of Nokia phone. 16. remove unwanted signs on your phone. 17. know manufacturing date of Nokia phone. 18. know if a Nokia phone has been repaired before it was sold to you. 2o. hide your phone number from somebody while calling with your phone. 21. check the temperature with your samsung phone. 22. know what is happening in your office and home time with your phone. 23. send anonymous text messages on your phone to another mobile number without any trace.