Porting-in allows you to move your SIM card phone number from your network provider to onoff and into the onoff App — thus keeping all of your numbers in one place.
PLEASE NOTE: If you choose to port your number over from your SIM card, you will need to get another SIM card for your phone. onoff App requires you to have access to a network to make calls and send messages. This SIM can be with any provider. Calls and SMS are deducted from the allowance on said sim card.
Currently number porting is only available in France.