Why Jio is charging 6 paise per minute for outgoing calls to Airtel, Vodafone ?

Why Jio is charging 6 paise per minute for outgoing calls to Airtel, Vodafone ?: Reliance Jio will now charge 6 paise per minute as IUC charge for all outgoing calls to Airtel and Vodafone Idea. Jio says the IUC charge will be there temporarily.

VARINDIA- INDIA'S FRONTLINE IT MAGAZINE