Wi-Fi Calling

Wi-Fi Calling enables you to make voice calls and send SMS via Wi-Fi, so you can keep in touch wherever you may be.

Make calls even when the mobile signal is weak or intermittent.
Make calls in the normal way without using an extra App.


Turn Wi-Fi Calling settings on - iOS (Version 10.3)
設定  >   電話  >   啟動 Wi-Fi通 話  >   開啟此 iPhone上的「Wi-Fi通話」
Settings > Phone > Wi-Fi Calling > Turn on "Wi-Fi Calling on This iPhone


Turn Wi-Fi Calling settings on - SAMSUNG (Android 7.0)
設定  >   電話  >   啟動 Wi-Fi通 話  >   開啟此 iPhone上的「Wi-Fi通話」
Phone > Setting indicator > Settings> Wi-Fi Calling > Turn on


Turn Wi-Fi Calling settings on - LG(Android 7.0)
設定  >   電話  >   啟動 Wi-Fi通 話  >   開啟此 iPhone上的「Wi-Fi通話」  >   開啟此 iPhone上的「Wi-Fi通話」
Settings> Call > Wi-Fi Calling > Turn on


Handset supporting Wi-Fi Calling
- iPhone 8 Plus
- iPhone 8
- iPhone 7 Plus
- iPhone 7
- iPhone 6s Plus
- iPhone 6s
- iPhone 6 Plus
- iPhone 6s
- iPhone SE
- Samsung Galaxy Note 8
- SAMSUNG Galaxy S8(Firmware: G9500ZHU1AQF7 or newer version)
- SAMSUNG Galaxy S8+(Firmware: G9550ZHU1AQF7 or newer version)
- SAMSUNG Galaxy S7(Firmware: G930FXXU1DQEV or newer version)
- SAMSUNG Galaxy S7 edge(Firmware: G9350ZHU2BQE3 or newer version)
- LG G6 (Firmware: V10f-HKG-XX or newer version)
- LG V20 (Firmware: V10o-HKG-XX or newer version)


Turn Wi-Fi Calling indicator on
Operating System Indicator


Terms and Conditions:
  1. Wi-Fi Calling service is only available with designated service plans and handsets, and cannot be used in conjunction with certain types of service. Please call 25123123 for details.
  2. If customer makes local voice call and send SMS via Wi-Fi Calling, the usage will be deducted from service plan.
  3. If customer makes IDD voice calls via Wi-Fi Calling, additional IDD fees will be charged.
  4. If no csl mobile network coverage, while the Wi-Fi Calling service is connected, Wi-Fi Calling service
    - shall not support sending and receiving Multimedia- Messaging- Service (“ MMS”)
    - shall not support sending USSD code
    - shall not support to set up or cancellation of Call Forward / Call Waiting, but does not affect the activated functions.
  5. Wi-Fi Calling service does not support video call.
  6. csl Wi-Fi service does not support Wi-Fi Calling service.
  7. Wi-Fi Calling service cannot be used when roaming.


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