Frequently Asked Questions

• What is GSM?
• What are the advantages of GSM?
• What is a SIM card?
• Do SIM cards come in different sizes?

Answers

• What is GSM?

  GSM stands for Global System for Mobile Communication, a globally accepted standard for digital cellular communication. GSM is an open, non-private system that is constantly evolving. One of the main advantages of GSM is its worldwide coverage, which allows you to keep the same telephone number across more than 250 countries.

• What are the advantages of GSM?

  GSM enables you to:

  • Return or transfer calls wherever you are.
  • Send text messages by SMS.
  • Block Caller ID.
  • Conduct conference calls with up to six participants.
  • Access several types of messaging.

  In addition, calls are clearer and more secure.

• What is a SIM card?

  SIM stands for subscriber identity module. A SIM card is a small electronic device that stores unique account information. The SIM card is installed in your phone to activate your account and to access the Voilà GSM network.

• Do SIM cards come in different sizes?

  Yes, the memory capacity of SIM cards typically varies between 16 K and 64 K in increments of 16 K. Voilà SIM cards currently have a capacity of 16 K or 32 K, depending on when you purchased your phone.