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1. What type of handset work in India in a GSM network?
Ans:     The handset should be GSM 900 / 1800 compatible.

2. What parameters should be kept in mind while purchasing a handset?

  • Your budget
  • Battery Type
  • Stand by and Talk Time
  • Size, Weight and aesthetics
  • Compatibility for SMS, WAP or GPRS etc. if required.
  • Availability of features like vibra alert or port for connectivity with laptop if required.
  • Other features like last calls record, phone memory, clock, alarm, calculator, games etc. should be checked before purchase according to your requirement. Some features are network dependent also.
  • If looking for camera phone, go in for the ones with larger display, better resolution, more memory, flash and zoom.
  • Fond of music then check for FM Radio and MP3 player. Phone memory, MMC card support and strong battery are important considerations for heavier audio or video files.

  • 3. What are the types of batteries available and which is better?
    Ans:     Nickel Metal Hydride, Lithium Ion and Nickel Cadmium. Lithium Ion batteries are considered to be better.

    4. What is the correct procedure of charging a battery?
    Ans:     A new battery should be charged for 10-12 hrs for the first 3-4 times this makes the battery seasoned for better results and longer life. Battery should be charged only when it gets fully discharged since all the batteries are designed for certain charge cycles which should not be wasted by semi charging. Also half charged battery when put for charge, start showing false charging quickly even when the battery has not charged fully. When such batteries are put to use, they get discharged also very fast. After the initial charging as above one should follow the normal charging procedure as displayed on the handset or given in the handset manual.

    5. What is PIN number and what to do if SIM gets blocked?
    Ans:     As soon as you insert a SIM Card in any Handset it asks for PIN (Personal Identification Number) which is a password that is known to the authorized user only. The PIN code can be set to protect your SIM card from unauthorized use.

  • To prevent continuous attempts to 'guess' the PIN number the SIM card automatically gets locked-up after three consecutive wrong entries. If the SIM card is locked-up, the "Blocked" message will appear and an unlocking code will be needed. Further repeat wrong entries of PIN may lead to damage of card.

  • The blocked SIM can be then opened through PUK number (PIN Unlocking code) which can be obtained from your service provider after establishing your identity. The PUK is an 8 digit code available with your cellular service provider. Also one should remember that 10 time’s successive wrong entries of PUK number may damage the SIM card forever.

  • 6. What are the functions of a SIM card?
    Ans:     SIM Card carries the user's identity for accessing the network and receiving calls.
          All calls are charged against their SIM card account.
          It is also equipped with a memory to store telephone numbers along with names.
         It also enables you to send and receive short messages (SMS).

    7. How to protect your SIM card from getting damaged?
    Ans:     Insert and remove SIM card carefully and don't do this frequently. Do not scratch, bend or twist the SIM and never write on it.
         Keep your SIM away from extensive heat.
         Keep cleaning your SIM cards once in three months with soft cotton to remove any possible dust particles.
         Keep the unused SIM wrapped in clean, non sticky paper at a safe place.

    8. What is an IMEI number of the mobile handset and how can we get it?
    Ans:     The IMEI number is a 15 digit number unique to a mobile handset which can help in tracking your mobile phone if it is lost. Just key in *#06# on your cellular phone and it will display its IMEI number.

    9. How to maintain the charger of a mobile?
    Ans:     Charged: Ensure your battery is fully charged, and then completely run it down before recharging. Recharging too early causes your battery to run out of power more quickly.
         Secure: For security reasons, enable the PIN on your SIM Card and Phone-lock on your phone to avoid unauthorized used. These security checks will also be activated when the phone is power cycled. You can check with your carrier or the phone manual for the features and also for information on blocking your SIM card and phone IMEI number if the phone is stolen. For more information please see the Security Tips located on the AMTA Lost and Stolen website.
         Protected: Make sure you use a keypad lock to lock your phone. Unplanned calls can cost a fortune and even though your phone may be in a safe place, such as in a bag, your phone will still get knocked around to a surprising degree. Rough treatment can damage electronic circuit boards so avoid dropping or unnecessarily shaking your phone.
         Battery: Be safe with your batteries. Use only genuine batteries from your phone manufacturer and only buy from authorized dealers. Going for the cheap option of a counterfeit battery can be dangerous.
         Clean: Don't use harsh detergents, cleaning solvents or harsh chemicals to clean your phone. Wipe only with a soft cloth.
         Covered: a protective cover will help repel dust and dirt, and prevent scratches. Make sure the cover you choose is of good quality. Low quality covers with no air pockets can damage you phone by creating humidity inside the cover.
         Storing your phone: Always store your phone in a dry place. Avoid rain, high humidity and liquids. All of these may contain minerals that could corrode the electronic circuits.
         At the right temperature: To ensure a long life, keep your phone in a stable temperature. Avoid exposing your phone to liquid and/or exposing your phone to extreme temperature change from hot to cold and vice versa. This might create condensation and damage the phone

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