L'équipe Texto SMS Gratuit
22 September 2026 · 12 min read
Introduction: 7:40 a.m., not a single bar
You grab your phone the moment you wake up. Top left, where the signal bars should be: "No service". The home Wi-Fi works, messages still come in through apps, but calls won't go through — and the verification code for your bank transfer is never going to arrive.
You step outside, assuming it's a local problem. On the street, three people are holding their phones up in the air, that same absurd gesture everyone makes without really believing in it. The shop on the corner has a sign up: "card payments unavailable". It isn't your device: it's the carrier.
Major mobile network outages are not urban legends. Arcep, the French telecoms regulator, requires operators to report significant incidents, and every year several episodes affect hundreds of thousands of subscribers for a few hours. This guide doesn't promise to bring the network back — there's nothing you can do about that. It explains what you can do regardless: run a two-minute diagnosis, reach emergency services even without your carrier, keep an escape route for your critical needs, and then claim what you're entitled to.
Step 1: your phone or the carrier? The two-minute diagnosis
Before launching a crusade against your carrier, rule out local causes. In order, from quickest to slowest:
- Turn airplane mode on, then off. This forces a full re-registration on the network. It's the move that fixes the majority of individual "no network" cases.
- Restart the phone. Two minutes, and it reboots the radio stack.
- Check the network selection setting. In your mobile settings, set carrier selection back to automatic. A manual selection left over from a trip abroad will block registration.
- Test the SIM in another device, or another SIM in yours. If the same SIM gets no signal anywhere, the problem is with the line or the network. If another device does get a signal with your SIM, your phone is the culprit.
- Ask around. A colleague on the same carrier having the same trouble, a neighbour on a different carrier with no issue at all: verdict delivered.
Two signals point to a carrier outage rather than a device problem: the message "Emergency calls only" (your phone can see a network, just not yours), and the fact that several subscribers on the same carrier are affected simultaneously in different places.
Where to check official information
- Your carrier's customer account and app: they all publish a "network status" or "current incident" page you can view over Wi-Fi.
- Official support accounts on social media, often more responsive than status pages.
- Community outage-reporting sites such as Downdetector: unreliable on causes, very useful for confirming the scale in real time.
- Arcep, which publishes data on quality of service and coverage, and whose "Mon réseau mobile" tool lets you check what signal you're supposed to be getting at home.
Common-sense rule: if the first three minutes of troubleshooting change nothing and other subscribers on the same carrier are affected, stop fiddling with your settings. The main risk is forgetting how your phone was configured in the first place.
Step 2: calling emergency services when your carrier is dead
This is the least well-known point, and the most important. In France, emergency numbers (112, 15, 17, 18, and 114 by text) do not depend on your carrier. When your network is unavailable, your phone automatically switches to any other available mobile network to route an emergency call. That's exactly what the "Emergency calls only" message means.
In practice:
- You can dial 112 even with a carrier that's down, even with no credit, and on most devices even without a SIM card.
- 114 is the emergency number reachable by text and video call, intended for deaf and hard-of-hearing people — but texting 114 assumes a network that is actually routing SMS, which is not guaranteed during a core-network outage.
- If the 112 call doesn't go through either, try from a phone on another carrier, from a landline, or go in person to the nearest fire station, police station or pharmacy.
There is one real limitation: when an outage hits a carrier's core network (rather than its masts), some devices stay "latched on" to a network that no longer works and don't switch over on their own. The workaround in that case is to remove the SIM card, or toggle airplane mode, and then dial 112: the phone will then go looking for any available mast.
The Wi-Fi option, often forgotten
If your home router works, Wi-Fi calling (VoWiFi) completely bypasses the lack of mobile coverage… provided the outage affects the masts and not the carrier's core network. Enable the feature in your settings ("Wi-Fi Calling") before you need it: it sometimes requires activation on the carrier's side.
Along the same lines, encrypted messaging and video-call apps run over the internet: a mobile outage doesn't affect them if you have a fixed connection. Keeping a backup 4G router at home that works with a SIM from another carrier, or even a well-placed Wi-Fi repeater, means you're not dependent on a single pipe.
Step 3: the collateral damage nobody thinks about
A four-hour mobile outage isn't just "not being able to make calls". In order of how painful it actually feels:
| What breaks | Why | The workaround |
|---|---|---|
| Banking two-factor authentication | The code arrives by SMS | Enable authentication inside the banking app (push notification over Wi-Fi) |
| Logging in to public services | Some accounts send an SMS code | Set up a backup email address and recovery codes |
| Contactless payment in shops | Terminals connected over 4G | Always keep a little cash on you |
| Door entry, alarms, home automation | Modules with built-in SIMs | Know the manual procedure |
| Travel and navigation | No data while out and about | Maps downloaded for offline use |
The lesson is simple: a mobile line has become an identity key, not just a way of talking. The day it goes down, your access goes down with it.
Three preparations that cost a few euros and change everything:
- Move your banking two-factor authentication and that of your main accounts over to an authenticator app (codes generated offline) rather than SMS, or to a FIDO2 security key for the most sensitive accounts.
- Download offline maps in your navigation app, and keep a charged power bank handy: a network outage makes the phone hunt constantly for a signal, which drains the battery twice as fast.
- Write down on paper three numbers you no longer know by heart. A pocket notebook tucked in your bag is the most robust solution ever invented.
Step 4: the backup line, insurance for €2 a month
The most effective defence against a carrier outage isn't technical, it's contractual: don't depend on a single network.
Three options, in order of cost:
- A prepaid SIM from a competing carrier, kept active with minimal usage. Real cost: a few euros a year, provided you respect the credit validity rules.
- A very cheap plan from a carrier that uses a different physical network. In 2026 there are still four mobile networks in France, and many low-cost offers piggyback on one of them as an MVNO. Check the host network, not the brand: a second line running on the same network as the first is useless on the day of the outage.
- A backup eSIM, activated in a few minutes on a dual-SIM-compatible phone. It's the most flexible solution: the profile stays stored, deactivated, and you wake it up when needed. Do check that your device really supports two active profiles at once, otherwise you'll have to juggle them.
If your current phone doesn't support dual SIM, an entry-level dual-SIM mobile phone kept in a drawer with a SIM from another network does exactly the same job for the price of a meal out.
The case of professionals
For a shopkeeper, a tradesperson or a healthcare professional, a four-hour outage costs money and sometimes worse. Critical uses (payment terminal, remote monitoring, on-call duty) deserve redundancy across two distinct networks. Some payment terminals can fall back to Wi-Fi; others accept a multi-carrier SIM that automatically switches to whichever network is available. That's a question for the terminal supplier, not the mobile carrier.
Step 5: getting compensation, and what the law actually says
Now for the contentious part. Your carrier owes you a service; if it doesn't deliver it, you're not supposed to pay for it.
The legal framework. The contract binds the carrier to an obligation to provide a service. The French Consumer Code states that the professional must perform the service in accordance with the contract, failing which a price reduction or termination of the contract may be requested. In practice, carriers' terms and conditions almost always include a compensation clause, often modest, and generally proportional to the length of the interruption.
What is realistic to obtain:
- A pro-rata refund for the days of unavailability. For a one-day outage on a €15 plan, that works out at 50 cents. Small, but it's the baseline.
- A larger goodwill gesture (a free month, extra gigabytes): this is what carriers offer spontaneously after a heavily publicised incident, sometimes without you even asking.
- Compensation for actual loss: here you have to prove it. Quantified business losses for a professional, a documented missed appointment. That's rare and slow.
- Termination without penalty if the interruption drags on and the carrier fails to restore service: this is the most powerful argument, especially if you're still under contract.
The procedure that works, in order — don't skip a step, each level requires proof that the previous one failed:
- Complaint to customer service, by phone or through your online account. Note the date, the time, the name of the person you spoke to and the case number. Without a case number, you don't exist.
- Letter to the consumer affairs department, sent by registered post with acknowledgement of receipt, if nothing happens within a month. Describe the facts, the dates, the harm suffered, and state your claim in figures. A pad of registered-letter forms, or simply sending it online via La Poste, will do; keep proof of posting.
- The Médiateur des communications électroniques (electronic communications ombudsman), who can be contacted free of charge after two months without a satisfactory response. It's a recognised body, and referring a case to it often unblocks a file within a few weeks.
- Report to Arcep via its "J'alerte l'Arcep" platform. The regulator won't settle your individual dispute, but it aggregates reports and that carries weight with carriers. It's a useful collective gesture.
- Signal Conso, the DGCCRF's platform, for problematic commercial practices (billing for a service not provided, refusal to terminate a contract).
Keep the evidence. Time-stamped screenshots showing no network, screenshots of the carrier's "incident" page, dated press articles, exchanges with customer service. A file with six pieces of evidence is worth a thousand protests.
What you absolutely should not do
- Reset the phone to factory settings. You may lose an active eSIM and you'll have added one outage on top of another.
- Delete the eSIM profile in order to "reinstall it": reinstallation sometimes requires access to the carrier's customer portal… which is itself overloaded during the incident.
- Order a new SIM card in a panic. The old one will be deactivated, and if the outage is resolved in the meantime you'll be without a line until the post arrives.
- Cancel in a fit of anger without having prepared number portability. Leave, by all means — but with your RIO code in hand and a portability request lodged with the new carrier, so you don't lose your number.
- Trust "automatic compensation" websites that offer to recover your compensation in exchange for a commission. The free procedure described above gets the same results.
What outages teach us about the French network
Four infrastructure operators share the country, with network-sharing agreements in sparsely populated areas. That means a failed shared mast sometimes cuts off several carriers at once, whereas a core-network outage affects only one player — but everywhere in France simultaneously.
The most frequent causes, documented by the carriers themselves during past incidents: a configuration error during a software update, a power failure at a central site, a backhaul fibre cut during roadworks, saturation during an exceptional event. Rarely malicious intent, often sheer banality.
The practical conclusion is short: the coverage shown on maps is not a guarantee of availability. A coverage map tells you where the signal reaches, not what will happen the day a router goes down in Paris. Choosing a carrier also means accepting its risk of outage — and giving yourself, for a few euros, a second way out.
Key takeaways
- Diagnose in two minutes: airplane mode, restart, automatic network selection, another device.
- 112 goes through any network: if it's blocked, remove the SIM and dial again.
- Move your critical authentication codes away from SMS before the next outage.
- A second line on a different physical network is the only real safeguard.
- Complaint → registered letter → electronic communications ombudsman → J'alerte l'Arcep: the chain works, provided you follow it in order and document everything.
