Number Portability

cristobert, In the first place, you need to understand that number portability means that when you switch cellphone network provider, you will be able to retain your current number without having to change to the new provider's numbers. I am sure a lot of people will be able to appreciate this where end users will not need to go through the agony of the mundanes of informing their family, friends and/or business associates of their new number. As for the networks, CDMA and GSM are both different so it is not possible for a CDMA number to be adopted to GSM and likewise.