Choosing a mobile plan for an elderly parent in 2026: the caregiver's guide

Introduction: the rushed caregiver's bad reflex

Sooner or later, the question comes up: "we really should get Mum a phone." The most common reflex is to grab the cheapest plan found online, order a big-button handset, and consider the matter settled. Six months later, you discover a bill inflated by premium-rate services, a device that no longer connects since a network was switched off, and a cold caller who has sold three subscriptions over the phone to someone who never asked for anything.

Setting up an elderly relative isn't about buying a plan: it's about designing a reliable, secure communication set-up that can be monitored remotely. The criteria are different from those of a 35-year-old professional. Data usage barely matters. What becomes decisive instead is real coverage inside the home, the device's technical compatibility, spending controls, and protection against cold calling.

In 2026, two technical developments make this subject urgent: the gradual shutdown of 2G and 3G networks in France, and the widespread adoption of voice over 4G (VoLTE). Many devices sold as "senior phones" in recent years are now living on borrowed time. This guide covers the whole question, in the order in which you should be asking it.

Step 1: check real coverage, not the marketing map

This is the point most often overlooked, and yet the most decisive. A €5 plan on a network that doesn't reach the living room is a useless €5 plan.

Don't trust the operators' maps

The coverage maps published by operators are outdoor propagation simulations, not measurements taken inside homes. Yet an elderly person spends most of their time at home, often in an older building with thick walls, sometimes with metal shutters or high-performance double glazing — both of which strongly attenuate the signal.

The right source is the Arcep, which publishes on monreseaumobile.arcep.fr coverage and quality data measured operator by operator, distinguishing between outdoor coverage and in-building coverage. Each year the Authority also publishes its annual survey on mobile service quality, whose results vary markedly between rural and densely populated areas.

The 20-minute field test

Nothing beats an on-site trial. The method:

1. Bring along two or three prepaid SIM cards from different operators (they cost a few euros).
2. Test in the rooms actually used: bedroom, living room, kitchen, bathroom (a frequent site of falls).
3. Note the signal level in dBm, not in bars. On Android: Settings → About phone → Status. On iPhone the information is harder to reach, but field test mode is still accessible depending on the version.
4. Make a real two-minute call in each room.

Simple benchmarks: above −85 dBm, everything is fine; between −95 and −105 dBm, calls go through but degrade; below −110 dBm, forget it.

Key takeaway: the best operator for your parent is the one that works in THEIR bedroom, not the one that tops the national rankings.

When nothing works: voice over Wi-Fi

If the home has an internet router, enable VoWiFi (Wi-Fi calling). All four French operators offer it, free of charge, on most plans. Calls then travel via the router rather than the mast. It is often the most effective solution for a poorly covered flat, and it costs nothing. Just check that the option is switched on in the phone's settings — it isn't always enabled by default.

As a complement, a mesh Wi-Fi repeater placed in the hallway fixes dead zones in the home and makes these Wi-Fi calls more reliable — provided the router is correctly positioned (never inside a closed cabinet or behind a television).

Step 2: the 2026 technical trap, the end of 2G and 3G

This is THE subject most caregivers discover too late.

What is actually happening

French operators have begun shutting down their legacy networks, under Arcep supervision. 2G and 3G free up valuable frequencies that are reassigned to 4G and 5G. Orange and SFR have announced staggered timetables over the 2025-2030 period, with 3G switched off before 2G at some operators and the reverse at others.

The direct consequence: a phone that cannot handle calls over 4G will eventually become a paperweight. And 4G was not designed for voice: it carries data. To make calls over 4G, the device must support VoLTE (Voice over LTE).

The check to run before any purchase

Many simplified big-button handsets sold between 2018 and 2023 are 4G for data but without VoLTE, or their VoLTE is not certified with the French operator concerned. The test:

• In the phone's settings, look for an entry called "VoLTE calls", "4G calls" or "HD Voice". If it doesn't exist, be wary.
• Make a call, then look at the network icon: if it switches to 3G or G/E during the conversation, the device isn't using VoLTE.
• Ask the operator to confirm: VoLTE works from a whitelist of approved models. An imported device may be technically compatible yet unrecognised by the French network.

If you're going for a new device, a VoLTE-compatible big-button mobile phone remains the most reassuring format: widely spaced physical keys, a high-contrast screen, and a charging cradle that avoids fiddling with a connector. Just check for an explicit mention of "VoLTE" or "4G calling" on the product sheet, not merely "4G".

What about connected assistance devices?

Be careful: personal alarms, GPS watches and telecare wristbands often contain 2G-only modules, for cost and battery-life reasons. This equipment is directly threatened by the shutdown. If a parent uses an assistance device, contact the provider to find out their migration roadmap. Don't assume "it'll always work".

Step 3: choosing the right type of plan

Once the network and the device have been validated, the plan itself becomes almost a detail. Almost.

The three families of offers

Type of offer	Indicative price	Advantage	Limitation
Capped plan (2 hrs + SMS, little data)	€3 to €8/month	No overspending possible	Not enough data for internet use
Standard no-commitment plan	€8 to €12/month	Flexibility, comfortable data allowance	Out-of-bundle charges billable
Prepaid / top-up card	~€5 to €10 topped up	Absolute spending control	Risk of running out of credit at the worst moment

For strictly voice use, a capped plan is often the best choice: out-of-bundle usage is impossible, which neutralises the risk of premium-rate charges. Beware of one subtlety, however: some so-called "capped" plans only block data and still let premium-rate numbers through. Insist on an explicit mention that special-rate services are blocked.

Prepaid, for its part, has one crippling flaw in a caregiving context: the credit can run out at the precise moment the call matters. Avoid it as the only backup line.