FP3(+). Shows "Unknown" Caller ID



This article will not help you if you are suffering from this issue since our latest software update.

We are aware that Fairphone 3/Fairphone 3+, in combination with some network operators and our latest Fairphone OS v.0129 update, is appearing as Caller Unknown when you call another device.
We are sincerely sorry for this and we are currently working to solve it as soon as possible.



Caller Unknown vs Private Number

We have recently become aware of an issue related to Unknown calls on some Network Operators after the Android 10 software update. Following here you will find more instructions on how to resolve this

If your Fairphone is instead showing Private Number when receiving a phone call, this is a different issue. In this case, just ask your caller to set the Caller ID as visible.

If your number shows as Private to others: Open the Phone app > Tap on the three dot menu on top right > Settings > Calling accounts > Tap on SIM card/name provider > Settings (name provider) > GSM call settings (name provider) > Additional settings > Caller ID - Number displayed in outgoing calls > Show number.



Fairphone 3/Fairphone3+ is technically capable of using VoLTE and VoWiFi technologies but we are still waiting to complete the partnerships with the various phone carriers so we strongly advise you to disable them as they might be causing incompatibilities with your network operator


If your caller Is "Unknown"

As a first step towards solving this situation, make sure to update your device to the latest software version

In case the update did not help and it happens with different callers, as a temporary solution, we suggest you to try the following workaround:


Disable Enhanced 4G LTE

1. Go to Settings > Network & internet > Mobile network > Advanced 
2. Click and disable the option "Enhanced 4G LTE Mode"

If the option "Enhanced 4G LTE Mode" is not available in your Fairphone, you can try selecting "Preferred network type" and then choosing "2G/3G auto". After the next software update, we suggest you switch back to the option "2G/3G/4G auto"


Disable Wi-Fi calling (VoWi-Fi, Voice over Wi-Fi)

Additionally, if the issue is still not solved, you might also need to disable Wi-Fi Calling (this service is not enabled for all network providers, so it might happen that it doesn't show on your device)

1. Open the Phone app (the app you use to make phone calls)
2. Tap on the More options icon (three vertical dots icon in the top right corner) then tap on Settings > Calling accounts 
3. Select the SIM card you are using
4. Click on Wi-Fi Calling and disable it


Need more help or issue not solved? Get in touch with our Customer Support!