Electronic and Postal Communications (Quality of Service) G.N. No. 416 (contd) (A constant IVR notice of credit expiry remains ON during this period, after which the service provider is at liberty to allow /disallow outgoing calls until debt is settled). Susbcription services, such as VAS SMS Stoppage of charging after service expiry (such as games, votes, and lotteries); Immediately (system automated) Information unsubscribing. SMS [just after registration/subscribin g] on service (subscribers should appropriately be informed on ways to unsubscribe from a service) 8 Measurement should base on Quality of Experience (QoE) on service provision Customer Perception of Service % of customers satisfied with the provision of service % of customers satisfied with the billing performance % of customers satisfied with help services % of customers satisfied with network performance, reliability and availability 16 >95 >90 >90 >95