Wi-Fi Calling

Frequently Asked Questions

1. What is Wi-Fi Calling?
Wi-Fi calling is a feature which allows you to make or receive calls over local Wi-Fi connection, similar to a cellular call.
You can connect with any mobile number or fixed line whether or not the other party is on Wi-Fi calling. It enables you to be contactable even in areas where mobile coverage is limited but have local Wi-Fi connection.

2. Do I need any subscription to use Wi-Fi Calling?
There is no subscription required, but to use Wi-Fi calling, your M1 line must be:

  • On a postpaid plan subscribed to 4G VAS
  • Used with selected supported devices purchased from M1 with local Wi-Fi connection


  • iPhone 6 and later
  • iPhone SE


  • Samsung Galaxy A5 (2017)
  • Samsung Galaxy A7 (2017)
  • Samsung Galaxy A9
  • Samsung Galaxy S10e
  • Samsung Galaxy S10
  • Samsung Galaxy S10+
  • Samsung Galaxy S7
  • Samsung Galaxy S7 Edge
  • Samsung Galaxy S8 / S8+
  • Samsung Galaxy S9 / S9+
  • Samsung Galaxy A8 / A8+
  • Samsung Galaxy Note 5
  • Samsung Galaxy Note8
  • Samsung Galaxy Note10 / 10+


  • Sony Xperia XZ1
  • Sony Xperia XZ Premium
  • Sony Xperia XZ2

3. Is there a specific Wi-Fi network that I must connect to use the service?
You can connect to any local Wi-Fi network to use this service.

4. How do I enable Wi-Fi Calling on my phone?
Settings > Phone > Toggle ON "WiFi Calling"



Settings > Connections > Wi-Fi Calling > Toggle ‘ON’


5. Can I still use the service when on airplane mode?
Yes, if the device is connected to a local Wi-Fi network.

6. Can I use the service when there is no cellular network?
Yes, if the device is connected to a local Wi-Fi network.

7. What are the charges for using the Wi-Fi Calling?
There are no additional subscription charges for Wi-Fi calling. However, all outgoing calls made via Wi-Fi calling will be deducted from your existing mobile plan’s monthly talktime bundle, or charged at the plan’s prevailing rates.

8. Can I use this Wi-Fi Calling while overseas?
Roaming WiFi calling is currently not supported.

9. Are there any charges for enabling Wi-Fi Calling locally and at overseas?
No, but overseas Wi-Fi call is currently not supported.

10.Can customers tether from M1 mobile network to use Wi-Fi Calling?

11. Will caller number non-display still work if I use Wi-Fi Calling?

12. What will happen if I walk out of the Wi-Fi range while I’m during my call?
If you are out of the Wi-Fi range while on your call, your call will be continued through M1 4G network [if 4G Voice (VoLTE) call is turned on].