KingKing Voice-roaming Service

Service introduction

The KingKing app is exclusive to csl subscribers and FREE⁽³⁾!

KingKing^{1, 2, 5 & 6} from csl is a VoIP application based on Wi-Fi or mobile network connectivity that can be used in Hong Kong or while overseas. It offers FREE³ voice minutes for making outgoing calls to any Hong Kong number and receiving incoming calls from anywhere in the world. Above all, KingKing will save you from running up huge voice roaming bills.

KingKing means：

• You can make/receive calls, regardless of whether the called person is on a fixed-line or mobile phone. The person you call, or who calls you, does not have to be a csl subscriber nor install any application. You can also send SMS⁸ to anyone, regardless of their service provider
• You can use your existing csl number and have your caller ID displayed to people you call, and see the ID of those calling you.

Use KingKing in Hong Kong

You can now use the full KingKing service via Wi-Fi or mobile network connectivity while in Hong Kong. This enables you to familiarise yourself with the user interface and app features before making a trip. Download NOW to enjoy the kingly convenience of KingKing!

If you need technical assistance, simply call our 24-hour Customer Service Hotline on 2512 3123.
 

Qualified customers

Starting from 11 March, 2024, the use of KingKing will only be applicable to customers on designated service plans, including but not limited to the following service plans*:

• Any csl 5G Service Plan (excluding 5G Tertiary Student U-Plan and 5G Smart Pama Monthly Service Plan)
• csl 365 Flexi Annual Plan

Tariffs⁽³⁾

* Sending SMS via KingKing while overseas incurs a charge, as if you were in Hong Kong. This will save you significant roaming costs, and the charge will be calculated based on the SMS service (including intra/inter-network and international arrangement) provided by us, as if you were in Hong Kong. KingKing does not facilitate receipt of SMS.
 

Application download

Download⁷ the KingKing app for FREE:

Click on the icon to go to the KingKing app download platform

How to login

How to login and use KingKing
 

Select the KingKing app icon on your handset, then:

1. Enter and submit your csl mobile number and  csl "My Account" password when using KingKing (Pic-1)
2. Enter the four-digit one-time password (Pic-2) sent to your mobile number by SMS
3. Accept the Terms & Conditions of KingKing (Pic-3)
4. Switch on KingKing so the icon on top left turns green, showing that all incoming and outgoing calls are connected via KingKing (Pic-4)
5. If you need technical assistance, simply call our 24-hour Customer Service Hotline on 2512 3123

(Pic 1)	(Pic 2)	(Pic 3)	(Pic 4)

KingKing Basic Settings and Guide