Antwort Why do my international calls keep failing? Weitere Antworten – Why is my phone not working in Europe

Why do my international calls keep failing?
Make sure that your phone is set to use the correct network. You can do this by going to Settings > Network & internet > Mobile network. Restart your phone. This can sometimes fix problems with your phone's software.If roaming is activated, you'll receive a message to let you know that you can make calls when you're abroad. If it's not activated, a message will appear saying you can't make calls when you're abroad.For Android*: Go to Settings → Connections → Mobile networks → Network operators. Switch off the 'Select automatically' toggle. Select a network from the list available.

Why is my data not working internationally : If your device is not connecting to mobile data when you are abroad, try the following troubleshooting steps: Check that mobile data and data roaming are both activated. Check that your network provider has permissioned your device and plan for data roaming. Update the software on your device.

How do I make my phone work in Europe

Buying a SIM card is by far one of the best ways to stay connected as you don't need to rely on local wi-fi access and you won't have to pay extra roaming fees. It's easy to purchase a SIM with most providers having stores in all international airports.

How do you get your phone to work internationally : Buy a local SIM card from the country you're visiting

SIM cards can be physical or digital (eSIM). If you buy a physical SIM card, you can swap it with an international SIM card from the country you're visiting when you insert the new SIM inside your device.

If you're traveling internationally, make sure that your device is set up for data roaming. In Settings, tap Cellular or Cellular Data. Then: If your device has a single SIM card or eSIM, turn on Cellular Data, then tap Cellular Data Options.

If your SIM card is not working in your phone, try removing and reinserting it, cleaning the contacts, and checking for any damage. Ensure your phone is compatible and unlocked, and contact your service provider if issues persist.

Why does my O2 not work in Europe

Turn off 5g in network settings if it's on. If still not working then contact O2 to remove the Roaming bar on your account.Go to Settings > Cellular > Cellular Data Options > Data Roaming. Toggle on/off to enable/disable roaming service for voice and data.The easiest way to make an international call is to dial the + (which should be the same key as the 0), followed by the country code, and then the phone number. The + replaces the International Direct Dialing (IDD) code when you use a mobile phone to call to another country.

Make sure Airplane mode is off. Try removing any shell, case, or skin that you have on your device. Check if service is available in the country you're visiting or the cruise you're on. Check if you have international roaming blocking active on your line.

Why can’t i call abroad on my iPhone : Turn on Dial Assist for international calls: (GSM) When Dial Assist is turned on, iPhone automatically adds the correct international or local prefix when you call your contacts and favorites. For information about making international calls (including rates and other charges that may apply), contact your carrier.

How do I enable international calling on my iPhone :

  1. From a Home screen, navigate: Settings. Cellular.
  2. Cellular Data Options.
  3. Roaming.
  4. Voice Roaming switch. to turn on or off . Voice Roaming must be on for the Data Roaming and International CDMA options to be available.
  5. International CDMA switch. to turn on or off.

How to fix SIM failure

To fix the SIM Failure issue, you can try some basic troubleshooting and check for physical or software issues.

  1. Restart your iPhone to resolve temporary glitches.
  2. Check for carrier setting updates.
  3. Eject the SIM tray, clean the card and tray with a dry cloth, and reinsert the card into the tray.


If you use an Android, head to the settings menu, click 'connections', then 'mobile networks'. You can then tap the switch to turn data roaming on or off.We're the only major network with which you can roam freely in the EU, up to 25GB. Whether you're jetting off, hopping on the train or driving (especially when you need to turn your phone into a sat nav), you can travel through 49 European countries without extra fees on your O2 plan. No roaming charges. No stress.

How to get O2 working abroad : You can opt-in to O2 Travel by texting TRAVEL to 23336. And you'll only be charged for the days you use it. If you don't have the O2 Travel inclusive Zone bolt-on or O2 Travel, you'll pay our standard rates.