Smart Nas app


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Smart Wi-Fi Calling is the first and only Wi-Fi calling service in Cambodia. With the launch of Smart Wi-Fi Calling, all Cambodian and worldwide Wi-Fi hotspots can now be part of the Smart network!

You can make calls and send SMS over any Wi-Fi connection. Outgoing calls are charged based on standard rates and incoming calls are completely FREE – both local and international!

Check our frequently asked questions on Smart Wi-Fi Calling:

How to use

  • Smart Wi-Fi Calling is automatically available to all prepaid and postpaid subscribers who have a 4G SIM card and a device that supports Smart Wi-Fi Calling
  • To activate Smart Wi-Fi Calling, simply enable the Wi-Fi Calling function in your phone’s settings


  • Call or send SMS over any Wi-Fi hotspot worldwide
  • A real worry-free roaming experience: use all roaming services at rates you would pay if you were at home
  • Every Wi-Fi is now part of the Smart network: make or receive calls or SMS even if there’s no mobile coverage!

Terms & Conditions

  • Smart Wi-Fi Calling is a free service available to all prepaid and postpaid Smart customers who own a 4G SIM card and a device that supports Smart Wi-Fi Calling.
  • All call charges follow your active tariff plan.
  • Switching your Smart tariff plan will not affect your Smart Wi-Fi Calling service.
  • The following devices currently support Smart Wi-Fi Calling:
    • Samsung: Galaxy A6, Galaxy A6 Plus, Galaxy A7, Galaxy A9, Galaxy J2 Pro, Galaxy J4 Core, Galaxy J4+, Galaxy J6+, Galaxy J7, Galaxy J8, Galaxy S8, Galaxy S8+, Galaxy S9, Galaxy S9+, Galaxy Note9, Galaxy S10, Galaxy S10e, Galaxy S10+ Galaxy Note10 and Galaxy Note 10+.
    • Huawei: Mate 20, Mate 20 Pro, P20, P20 Pro, Mate 30, Mate 30 Pro, Nova 3, Nova 3i and Nova 3lite.
    • Apple: iPhone 6 and above with iOS 12.1.1
    • Smart: Smart Hero

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