It is the possibility of changing mobile operator company retaining the phone number that the user has before the change. If I change my mobile operator, I can keep the phone number. Some operators allow customers to keep phone numbers when switching service pattern, a contract prepaid card or vice versa. In this case we are not talking about portability. We refer to portability only when they change operator.
Change of operator and be forced to change his number involves expense and inconvenience, and risk losing customers, contacts, friends ... It constitutes an obstacle for subscribers who choose to change the operator and therefore is a barrier to market entry of new operators. The portability (keeping the number) eliminates a barrier to entry of the mobile phone provider which is essential to achieve full market competition.
Do I need to sustain the kind of service when changing operator?
No, the subscriber can freely choose the type of service they prefer to receive, whether prepaid or contract card, and benefit from any plan, discount or offer to offer its new operator.
Customers can port your number from and to any other mobile operators. The type of technology they use operators (analog or digital) does not limit the subscriber who decides to carry. The customer can choose freely the type of service you want to receive: rechargeable cards (prepaid) or contract (postpaid). Therefore, the operators can not set any limits on the new technology or service for which the subscriber chooses, this would be contrary to the rules. The subscriber is ported to all, another client for its new operator (host operator) except that it does not assign a new number, since it preserves the operator assigned to its original (donor operator). The type of service that subscribers have contracted with the former operator (operator donor), that is, contract or prepaid card, it is irrelevant to the application portability. Both types of subscribers are entitled to be portable.
