What is rsn number in mobile?

Enter the RSN number which is printed in the battery compartment of the JioFi device and also present on the box. Can anyone tell me how i unlock the RSN Number of any set. This facilitates a phone call from any valid mobile device since the subscriber data is used to complete the call rather than the telephone internal serial number. Please share the two IMEI numbers and RSN (Settings-About phone-Status) number of your handset – Fatima. I WANT THE SAME MOBILE NUMBER TO MY EXISTING HAND SET MODEL 2280 AND RELIANCE DEPT ASKING FOR RSN NUMBER. "Now all top phone manufacturer company like samsung ,nokia,lg,etc are providing dual sim mobile.