The Problem Most People Ignore Until the Bill Arrives

Almost every guide about avoiding mobile roaming focuses on outgoing calls. Use Wi-Fi calling, dial through WhatsApp, install a local SIM — fine.

But here's what doesn't get talked about often enough: when you're abroad, every incoming call to your home-country number can also cost you money. Your bank calls about a flagged transaction. A delivery driver needs gate access. A relative phones to check in. The moment you answer (and in some networks, the moment the network rings your phone), you're billed for an inbound roaming call — typically £0.10 to £0.50 per minute on top of whatever your normal plan covers.

The fix isn't to ignore those calls. The fix is to stop using your home-country SIM as the inbound destination at all. Here are the four options that actually work, ranked by total cost.

Option 1: Buy a Voxa Local Number in Your Home Country and Receive in the Browser (Cheapest)

This is the model the rest of the article will keep coming back to, so we'll spell it out clearly first.

  1. While you're abroad, you buy a local virtual number in your home country from a service like Voxa. The number behaves like any other landline or mobile in that country — friends, banks, and businesses dial it normally.
  2. Give that new number to anyone who needs to reach you. Update your bank, your doctor, your delivery profiles, your contacts.
  3. When someone dials it, the call arrives in the Voxa web app on whatever device you have nearest — phone, laptop, tablet. There is no per-minute charge to receive in the app, only the monthly rental for the number itself.
  4. If you don't want to use the browser, you can forward the call to a local SIM in the country you're currently in, or to any other phone number. Forwarding is billed at Voxa's standard outbound per-minute rate to that destination (e.g. €0.05/min to UK mobile, €0.07/min to Germany mobile, €0.02/min to US mobile). Incoming forwarding is priced the same as if you were calling that destination yourself.

Cost shape: small monthly fee for the number + €0 if you receive in the browser, or per-minute outbound rate if you forward.

Best for: anyone living or working abroad for more than a few weeks, who has trusted Wi-Fi or mobile data, and who wants a permanent setup.

Option 2: Conditional Call Forwarding from Your Home SIM to a Voxa Number

If you can't update everyone's contact list (banks, government agencies, old contacts), you can keep your existing home-country number active and forward inbound calls onward.

  1. Set conditional forwarding on your home SIM: "if I don't answer in 5 seconds, forward to +X..." where +X is your Voxa local number.
  2. When someone dials your home number, the carrier rings it briefly, your phone (abroad) doesn't pick up, and the carrier forwards the call to Voxa.
  3. From there, you receive it in the browser for free, or it forwards on to your foreign mobile.

Catch: the forwarding leg from your home carrier to the Voxa number is usually billed by your home carrier as a local outbound call from their network. In most UK and EU plans this is included in monthly minutes, so it ends up free. Verify with your specific carrier — a few markets bill forwarded legs separately.

Best for: short-term travel where you can't yet retrain everyone to call a new number, but you don't want to pay roaming when they call.

Option 3: Your Home Carrier's Wi-Fi Calling Feature

If your home carrier supports Wi-Fi calling, you can connect over a Wi-Fi network abroad and receive calls to your home number as if you were at home.

Cost shape: zero per-minute when on Wi-Fi, billed as a domestic call by the home carrier (almost always included in your plan). But the moment you walk off Wi-Fi, you're back on the local roaming network.

Best for: short trips, especially if your home carrier is one of the few that handles Wi-Fi calling well abroad. Watch out: some carriers technically block Wi-Fi calling outside their home country to prevent exactly this use case. Check before you fly.

Option 4: WhatsApp or Other Messaging Apps

If the caller has WhatsApp or Signal too, free calls work. But for the people who'd ring your real phone number — banks, hospitals, hotels, delivery drivers, government — this option is not on the table. They will dial your phone number from a regular phone. None of those callers will switch to an app to reach you.

Use only for: family and friends already on the app.

Side-by-Side: A Month of Inbound Calls for a UK Expat in Spain

Roughly 60 minutes of incoming calls in a month — five from family on WhatsApp, three from the bank (each 10–15 minutes), a doctor's office calling back, two delivery drivers needing gate codes.

  • Roaming the home SIM directly: about £6–£30, depending on plan tier and what classifies as "EU-included" vs not
  • Wi-Fi calling on home SIM: free, but only for calls you happen to take on Wi-Fi
  • WhatsApp: free, but only for family — bank and delivery aren't on it
  • Voxa local UK number, receiving in browser: the small monthly rental for the number, plus €0 in per-minute charges

For anyone abroad more than a month, option 1 is the lowest total cost and the most reliable. For shorter trips, option 3 plus WhatsApp is enough.

How to Set This Up Before You Leave (Or Right Now If You're Already Abroad)

  1. Sign up at joinvoxa.com and add a small credit balance (€5 is enough).
  2. Purchase a local number in your home country. UK, Germany, France, Spain, Italy, the US, Canada, Australia, and 40+ others are available.
  3. Test it: ask a friend to dial the new number. You should hear it ring in the Voxa web app within a second.
  4. Update the contacts that matter: bank, healthcare, employer, important services. Many of these now accept number changes online.
  5. Optional: set conditional forwarding on your home SIM to the Voxa number, so even contacts you didn't manage to update still get through.
  6. Optional but useful: enable forwarding from Voxa to a local SIM in your destination country if you'd rather take calls on a normal phone interface.

That's the entire setup. About 10 minutes of work to permanently stop paying inbound roaming on your home number.

The Mindset Shift

Most people treat their home-country phone number as something they have to keep paying for and roaming on, because it's tied to their identity with banks and services. The shift that makes this whole problem go away is realising the number is just a routing handle. It points somewhere. Today it points at a SIM card that costs you money every time it rings while abroad. Tomorrow it can point at a Voxa account where the ringing costs nothing.

When the routing handle is decoupled from the physical SIM, roaming on inbound calls stops being a thing you have to manage. It just stops happening.