Jio, which runs a massive bill picking up the IUC cost of its customers' free calls, wants the charge dropped. "Jio, however, has been asking for a 'bill and keep' (BAK) method in which companies charge their customers, not each other. It carries voice calls over 4G internet (VoLTE) and says IUC has no relevance as the whole industry moves towards IP-based (internet protocol) models. "The IUC regime was originally rolled out in 2003 as Trai opted for a calling party-pays (CPP) method in which incoming calls were free. Initially, termination charges varied from 15 paise to 50 paise per minute, based on distance, and a carriage charge of 20 paise to Rs 1.10 per minute was also levied.

Source: Times of India August 12, 2017 19:37 UTC