The new Mobile number portability: the procedure The purpose behind mobile number portability: a customer is free to change service provider and yet retain her/his old number saving the bother of changing phone numbers. Does portability allow technology switch? A customer may retain the same technology, or change between GSM and CDMA. This is applicable to post-paid and prepaid connections. How much time will it take to change service provider? Normally seven working days, but 15 days in Jammu and Kashmir and Northeast. What will the charges for this be? The new service provider will...