KingKing from 1O1O/csl is a VoIP application that offers free voice minutes for making outgoing calls to any Hong Kong number and receiving incoming calls from anywhere in the world. With KingKing, users can make and receive calls to both fixed-line and mobile phones, without the need for the called person to be a 1O1O/csl subscriber or install any application. The app also allows users to send SMS messages to anyone, regardless of their service provider. Additionally, KingKing enables users to use their existing 1O1O/csl number and have their caller ID displayed to people they call, as well as see the ID of those calling them.

Users can now enjoy the full KingKing service via Wi-Fi connectivity while in Hong Kong, allowing them to familiarize themselves with the user interface and app features before traveling. Download KingKing now to experience the convenient and cost-saving benefits it offers.