U Mobile WiFi Calling

Make every WiFi connection your personal mobile network tower

Make calls over WiFi with WiFi Calling

WiFi Calling allows you to make and receive calls over WiFi using your mobile number, helping you stay connected even when you have limited or no network coverage with no additional charges*.

Extended Coverage

Make calls indoors and in high-rise buildings even with bad/no reception

No Roaming Charges

Call at local rates even when you are overseas

HD Calls

Experience better quality calls and reduced background noise

*Standard local and international call charges apply.

Rates and charges

Calls made over WiFi Calling will use your plan’s minutes where applicable, even when you’re overseas. If you do not have any bundled voice minutes, you’ll be charged the pay-per-use rate. International calls will follow the standard IDD rates.

Calls within Malaysia

To any Malaysian number

Your plan's rates will apply, including unlimited calls

To any international number

IDD rates will apply

Calls outside Malaysia

To any Malaysian number

Your plan's rates will apply, including unlimited calls

To any international number

IDD rates will apply

iOS Android

WiFi calling available on iPhones with iOS9.3 or later

iPhone X / iPhone 8 / iPhone 8 Plus / iPhone 7 Plus / iPhone 7 / iPhone SE / iPhone 6s Plus / iPhone 6s / iPhone 6 Plus / iPhone 6 / iPhone 5s /
iPhone 5c

Go to ‘Settings’.

Tap on ‘General’.

Under the General menu, tap on ‘About’.

Tap the Update button when prompted.

Go back to ‘Settings’.

Tap on ‘Phone’.

Select ‘Wi-Fi Calling’.

Slide the ‘Wi-Fi Calling on This Phone’ to ON.

Tap ‘Enable’ when the Confirmation Message pops up.

Ensure that WiFi is turned ON.

Make sure you are connected to a WiFi access point.

Go back to Home Screen, and you’ll see ‘U Mobile WiFi’ on the top left

To make a call via WiFi Calling, simply dial a number

Incoming calls are automatically received through Wifi

WiFi calling available on Android Smartphones

Samsung Galaxy Note8, Samsung Galaxy S8, Samsung Galaxy S8+, Samsung Galaxy S7 edge, Samsung Galaxy Note5, Huawei Mate 10,
Huawei Mate 10 Pro

Update your Android phone software to the latest version.

SMS wificalling on to 28118.

Tap on Settings then tap on WiFi Calling.

Slide WiFi Calling to ON.

Select WiFi Preferred to make calls using WiFi Calling.

Turn ON your WiFi.

Connect to an available WiFi Network.

Ensure that WiFi is turned ON and WiFi Calling is ACTIVE.

To make a call via WiFi Calling, simply dial a number

Incoming calls are automatically received through WiFi

FAQs T&C

WiFi Calling - iOS

WiFi Calling lets you use your existing U Mobile number to make and receive calls using WiFi connection. Your WiFi hotspot effectively becomes a U Mobile network tower. You can also enjoy huge savings while overseas when calling Malaysian numbers at local call rate (no roaming surcharge).

Please follow these steps:

  1. Insert U Mobile SIM into your iPhone
  2. Activate the service (send “wificalling on” via sms to 28118)
  3. Enable WiFi Calling on your phone (go to Settings > Phone > Wi-Fi Calling > toggle to ON)
  4. Connect to a WiFi network
  5. If WiFi Calling is available, you’ll see “U Mobile WiFi”. All calls will then be made using WiFi Calling

There are many devices or phones which support WiFi calling. For reference, the followings are a few popular phone models which support this service:

  1. iPhone: iPhone 5S/ 5C and newer models
  2. Samsung: Samsung Note8, Galaxy S7 and newer models
  3. Huawei: Huawei Mate 10, P20 and newer models
  4. Oppo: Oppo Reno 4 and newer models
Please note that the above list is not exhaustive. Kindly check with device or phone manufacturer for compatibility.

Yes it does. Please update to the latest iOS firmware, and install the latest “carrier bundle” (goto Settings > General > About > install the bundle if prompted)

All U Mobile subscribers on postpaid and prepaid plans are eligible for WiFi Calling, as long as the rate plan supports “voice call”.
It is not available on “data only” plans (such as Postpaid MB plans).

All you need is a private or public WiFi network that is connected to the Internet. We do recommend either 802.11n or 802.11ac standards as they provide better data quality connection.

Yes, a valid and active U Mobile SIM card is required. If your line is barred, suspended or terminated, you will not be able to make a call. If you have a dual-SIM phone, please insert your U Mobile SIM into Slot 1.

Please try to repeat the steps to set up WiFi Calling. You may also try these steps if it still doesn’t work :

  • Connect to a different WiFi network which has stronger signal. Do note that some “corporate networks” may block WiFi Calls (please see your network administrator for assistance)
  • Turn WiFi Calling off and then on again
  • Restart your phone

There are a few possible reasons:

  • WiFi Calling checks for an adequate Wi-Fi signal strength before initiating the automatic connection to WiFi Calling. Move to an area where the signal strength is stronger.
  • If the WiFi network has a captive portal (Eg. Starbucks which requires login), you may have to launch your browser and sign-on (providing username / password) to the network depending on the Wi-Fi provider's policy.
  • For public WiFi networks, the provider may have policies in place that blocks WiFi Calling service.

You are not required to register for IDD or IR service in order for you to use the WiFi Calling service when abroad to call back to Malaysia. However, if you need to make any outgoing IDD calls, you will have to enable IDD services. Should you need to make a call abroad when not using WiFi Calling, you will be required to have IR service enabled as well.

WiFi Calling - Android

WiFi Calling lets you use your existing U Mobile number to make and receive calls using WiFi connection. Your WiFi hotspot effectively becomes a U Mobile network tower. You can also enjoy huge savings while overseas when calling Malaysian numbers at local call rate (no roaming surcharge).

Please follow the following steps:

  1. Activate the service (send “wificalling on” via sms to 28118)
  2. Update your phone firmware (via Settings > About > Software Update)
  3. Enable WiFi Calling on your phone (go to Settings > Wi-Fi Calling > toggle to ON)
  4. Connect to a WiFi network
  5. If WiFi Calling is available, you’ll see the WiFi Calling indicator in the status bar. All calls will then be made using WiFi Calling

    This is dependent on the phone manufacturer’s implementation & policy. Some may not provide the firmware support to enable the service if the foreign device is used with Malaysian SIM card.

    All U Mobile subscribers on postpaid and prepaid plans are eligible for WiFi Calling, as long as the rate plan supports “voice call”.
    It is not available on “data only” plans (such as Postpaid MB plans).

    All you need is a private or public WiFi network that is connected to the Internet. We do recommend either 802.11n or 802.11ac standards as they provide better data quality connection.

    Yes, a valid and active U Mobile SIM card is required. If your line is barred, suspended or terminated, you will not be able to make a call. If you have a dual-SIM phone, please insert your U Mobile SIM into Slot 1.

    Please try to repeat the steps to set up WiFi Calling. You may also try these steps if it still doesn’t work :

    • Connect to a different WiFi network which has stronger signal. Do note that some “corporate networks” may block WiFi Calls (please see your network administrator for assistance)
    • Turn WiFi Calling off and then on again.
    • Restart your Android smartphone.

    There are a few reasons:

    • WiFi Calling checks for an adequate Wi-Fi signal strength before initiating the automatic connection to WiFi Calling. Move to an area where the signal strength is stronger.
    • If the WiFi network has a captive portal (Eg. Starbucks which requires login), you may have to launch your browser and sign-on (providing username / password) to the network depending on the Wi-Fi provider's policy.
    • For public WiFi networks, the provider may have policies in place that blocks WiFi Calling service.

    A typical scenario is your phone is connected to a WiFi hotspot, the call you make will be sent to U Mobile network via internet, U Mobile will then connect your call to the recipient.

    WiFi Calling

    This voice service using an active WiFi connection (WiFi Calling) is available as an optional service to your Prepaid, Postpaid or Broadband plan and is supplied according to the relevant Terms of Service. You must comply with those Terms of Service including our Privacy Policy, the terms applicable to the relevant Prepaid, Postpaid or Broadband subscription plan and these additional terms and conditions (collectively, the Terms), all which are available on https://www.u.com.my/tnc.

    1. Eligibility

      2. All active U Mobile customers with a compatible device can use WiFi Calling. Active means able to make and receive calls.
    2. Setup

      1. To use WiFi Calling, please follow the steps stated on our website. These steps may vary depending on your device model, and may include the download and installation of a mobile app. Once the steps are completed and you are connected to a WiFi network, you may make a call over WiFi (WiFi Call).

      2. Usage of the mobile app (if any) is governed by separate terms and conditions of the app provider.

    3. WiFi Calls

      1. By default, any call you make will be made on our mobile network, unless you have enabled WiFi Calling and you have connected to an active WiFi network, in which case your call will be made on WiFi Calling.

      2. WiFi Calling enables you to make and receive calls even at locations where U Mobile has limited or no network coverage.

    4. WiFi Connection

      1. In order to continue with a WiFi Call, you need to stay connected to a WiFi network.

      2. Once you leave the WiFi network, your calls will be disconnected automatically. In this case you need to redial to make the WiFi Call once you are connected to a WiFi network again.

      3. The quality of the WiFi Call is dependent on the WiFi network that the call is made or received over.

      4. U Mobile does not ensure and disclaim all liability relating to the availability, quality or security of the WiFi network that you connect to. Such connection is subject to separate terms and conditions as may exist between you and the WiFi provider, including the privacy policy of such provider relating to any data that such provider may collect via the WiFi connection. You are responsible for adhering to such terms and conditions.

    5. Charges

      1. Call charges for WiFi Calling follow our standard U Mobile call rates. If your U Mobile plan is bundled with voice minutes, WiFi Calling will utilize those minutes. In the absence of bundled voice minutes, our pay-as-you-use charges apply. These charges are published on our website from time to time.

      2. Your WiFi Calls will be charged based on the following principles:

        1. if the party you called is in Malaysia and on a local network, your WiFi Call will be charged as a domestic call;

        2. if the party you called is also on U Mobile WiFi Calling, your WiFi Call will be charged as domestic call (regardless of the parties’ actual locations); and

        3. if the party you called is not on U Mobile WiFi Calling and is

          1. outside of Malaysia; or

          2. on a foreign network but roaming in Malaysia
            your WiFi Call will be charged as an international call.


      3. WiFi Calls do not utilize any data quota allocated to you under your U Mobile plan. However, you are responsible for data consumption charges over the WiFi network, if any.

    6. Emergency Services Number

      1. Even when you have enabled WiFi Calling, we will try our best to connect any emergency services call that you make (for eg. to 999) through our mobile network (instead of WiFi). This is to ensure that your location can be identified.

      2. In circumstances where the emergency services call is connected through WiFi Calling (in cases where mobile phone network is not available), you understand that your location will not be automatically identified. In this case, your WiFi Call will be routed to Malaysia’s emergency services (regardless of your actual location).

      3. You should use WiFi Calling for emergency services call as a last resort.

    7. Others

      1. In providing WiFi Calling service to you, we will collect information such as the internet protocol (IP) address used for the WiFi Call made by you. Such information will be used by us or our third party service provider for the purpose of providing WiFi Calling service to you, including for billing purpose. Where personal data is collected, it will be used in accordance with our Privacy Policy.

      2. U Mobile may change any of these terms and conditions including terminating or suspending WiFi Calling. Any such change will be announced on our website. It is your responsibility to check these terms and conditions on our website.

    Version : 14 February 2020