In short and in plain language
Phones use different networks. The oldest one is called 2G. It is due to be switched off in 2028.
Most phones already use the newer 4G or 5G network. For them, nothing changes. Old phones that only have 2G will stop working.
Look at the top of the screen. If it says 4G, LTE or 5G, that is good. If it only says E or G, have the phone checked.
An alarm button, an emergency watch or an alarm system with a SIM card can also be affected. Ask the provider if the device has 4G.
A phone without a SIM card cannot call for help. Put a valid card in your backup phone.
The Federal Network Agency (Bundesnetzagentur) puts it plainly: Telekom, Vodafone and Telefónica expect to switch off their 2G networks in 2028 (Bundesnetzagentur). For most people nothing changes, because their smartphone has long been using 4G or 5G. The devices at risk are the ones hardly anyone thinks about: the old keypad phone in the kitchen drawer, the alarm button on the wrist, the alarm system with a SIM card in the basement or the automatic emergency call in the car. With emergency devices in particular, a silent failure is the real risk, because it only shows when someone needs help. This article explains when each network operator plans to switch off, which devices can be affected, how to check a phone yourself in a few simple steps and what a device inventory for the whole household looks like. There is enough time before the first date to replace things calmly instead of rushing in the summer of 2028.
Key takeaways
- Telekom, Vodafone and Telefónica expect to switch off their 2G networks in 2028: Telekom by June 30, 2028, Vodafone in September 2028 and Telefónica by the end of 2028 (Bundesnetzagentur).
- Devices that only use 2G and 3G are affected, as are older 4G devices without VoLTE: on them, voice calls and emergency calls would no longer work after the shutdown (Bundesnetzagentur).
- A look at the display is enough, including during a call: if the indicator switches to “2G”, “GSM”, “E” or “Edge” while you are on the phone, the phone may only be calling over 2G (Verbraucherzentrale).
- Alarm buttons, emergency watches, home emergency base stations and alarm systems with a SIM card belong on the checklist unless they are 4G or 5G capable. Ask the provider or installer in writing which radio module is built in.
- An eCall system based on 2G can no longer place an automatic emergency call once all 2G networks are off; since January 1, 2026, new vehicle types need an eCall for 4G and 5G networks (Delegated Regulation (EU) 2024/1180).
- A backup phone needs a valid SIM card, because emergency calls from mobile phones without a SIM card are not permitted in Germany (Section 4 NotrufV). 86 percent of people aged 16 and over keep at least one unused phone at home (Bitkom).
When the 2G network will be switched off
On its topic page about the 2G shutdown, the Federal Network Agency writes that the network operators Telekom, Vodafone and Telefónica have announced that they expect to switch off their 2G networks in 2028 (Bundesnetzagentur). The dates are a few months apart. Telekom is aiming for June 30, 2028, while Vodafone plans the shutdown for September 2028 (Bundesnetzagentur). Telefónica, which runs the O2 network, has announced the shutdown for the end of 2028 (Bundesnetzagentur) and names the second half of 2028 in its own announcement (Telefónica Deutschland).
| Network | Planned date | Stated by |
|---|---|---|
| Telekom | expected June 30, 2028 | Bundesnetzagentur, Telekom |
| Vodafone | September 2028, for especially critical IoT applications until the end of 2030 | Bundesnetzagentur, Vodafone |
| Telefónica (O2) | second half of 2028, end of 2028 according to the Bundesnetzagentur | Telefónica Deutschland, Bundesnetzagentur |
| 1&1 | no 2G network of its own, the Vodafone date applies for now | Bundesnetzagentur |
If you use a smaller brand or a discount provider, you are technically on one of these networks. For customers of 1&1, which does not run its own 2G network and uses Vodafone’s 2G network through national roaming, the Vodafone date applies for now, according to the Federal Network Agency (Bundesnetzagentur). Which network is behind your contract is usually stated in your contract documents or on the provider’s website. Two caveats belong to the full picture: Vodafone keeps its 2G network open until the end of 2030 for especially critical IoT applications (Vodafone). The announcement does not list which applications qualify; for private and business customers Vodafone switches off its 2G services in September 2028 (Vodafone). And the dates themselves are announcements by the network operators; the Federal Network Agency also says “expected”.
That does not change the direction, because the predecessor is already gone: the 3G networks in Germany were switched off back in 2021 (Bundesnetzagentur). The reason is room in the radio spectrum. The Federal Network Agency considers it necessary to switch off old technologies such as 2G at the end of their life cycle so that the limited frequencies can be used for broadband mobile service. The successors are well established: more than 97 percent of Germany’s land area is covered by 4G and more than 93 percent by 5G (Bundesnetzagentur). With 2G, however, all network operators reach more than 99 percent of the area (Bundesnetzagentur). The remaining gaps are to be closed wherever possible before the shutdown; the Federal Network Agency says it is pressing the operators to do so.
No need to rush, but time for an inventory
Which devices can be affected
The Federal Network Agency states the basic rule clearly: in principle, all devices that can only use 2G and 3G mobile networks are affected (Bundesnetzagentur). There is no complete list because of the enormous variety. The second point on the same page matters just as much: some 4G and 5G devices can also be affected if they do not support voice services on the 4G network, meaning Voice over LTE, or VoLTE for short (Bundesnetzagentur). Such devices only use 4G for data and switch to the 2G network for calls. After the shutdown, voice calls and emergency calls would no longer work on them, and older 4G devices are the ones mainly affected (Bundesnetzagentur).
Besides classic mobile phones, the Federal Network Agency lists further examples, provided they are not 4G or 5G capable: radio modules built into vehicles for emergency calls or auxiliary heating, emergency radio modules in elevators, card payment terminals and sensors and meters (Bundesnetzagentur). For a senior household this means: anything that has a SIM card and is supposed to raise the alarm in an emergency belongs on the checklist.
Old keypad phone
The backup device in the drawer or glove compartment. If it only shows “E” or “G”, it will probably be unable to connect after the shutdown.
Smartphone without VoLTE
Browses over 4G but makes calls over 2G. This mainly affects older models; sometimes VoLTE is simply turned off in the settings.
Mobile alarm button
The home emergency alarm for on the go transmits with its own SIM card. The device provider knows whether its radio module supports 4G.
Emergency and tracking watch
Watches with an SOS button, fall detection or location tracking sometimes use their own SIM card. Look for LTE and VoLTE in the data sheet.
Alarm system with SIM
Reports a break-in or fire by text message or call. Some older control panels only work with 2G; the installer knows which dialer is built in.
Car emergency call eCall
In many vehicles the automatic emergency call still uses 2G technology. The manufacturer knows whether there is a 4G solution for your model.
Devices that do not transmit over the mobile network at all are not affected. A home emergency system whose base station is connected to the phone line or the router calls over the landline; what matters there is rather whether the router has power, as the article on a power outage at home shows. Wi-Fi calls do not use 2G either, but they need a working Wi-Fi network; more on this in the article on indoor reception and Wi-Fi calling. The situation is unclear for base stations that additionally or exclusively use a SIM card. The consumer advice center Verbraucherzentrale explicitly lists elevator and home emergency systems among the emergency systems that must be converted to keep emergency calls working (Verbraucherzentrale). What counts is whether the base station transmits through a 2G-only module.
Checking a phone: how to spot 4G and VoLTE
For phones with a network indicator, a look at the top edge of the screen is enough in most cases. If it shows “5G”, “4G” or “LTE”, customers generally do not need to worry about anything else, according to Telekom (Telekom); Vodafone also sees no need for action in this case (Vodafone). Conversely, Stiftung Warentest, Germany’s consumer testing foundation, says: if the display regularly shows only “G”, “GSM”, “2G” or “E” and at no time “4G”, “LTE” or “5G”, the device probably cannot establish 4G or 5G connections and will stop working after the 2G shutdown (Stiftung Warentest).
The indicator at rest only tells you about data, though. Even if the display shows “4G”, that does not yet mean the device can make calls over the 4G network, because voice calls over 4G were introduced later than 4G technology itself (Stiftung Warentest). That is why a second look during a call is worthwhile: if the indicator switches to “2G”, “GSM”, “E” or “Edge” while you are on the phone, the device may only be calling over 2G even though it supports 4G, and a changeover or an adjustment of the settings is needed (Verbraucherzentrale). Telefónica recommends exactly these two steps in its checklist for consumers: check the device and check the settings (Telefónica Deutschland).
- Look at the network indicator while the phone is not on a call: does it show “4G”, “LTE” or “5G”? Check this in several places in your home and once outdoors.
- Make a test call, for example to a relative, and watch the indicator during the call. If it jumps to “2G”, “E” or “GSM”, continue with the next step.
- Check in the settings whether VoLTE, “4G calling” or “LTE calling” is turned on. Depending on the manufacturer, the switch is under Mobile data, Cellular or Mobile networks.
- For keypad phones without a network indicator, check the manual or data sheet. Stiftung Warentest points to the data sheet and the device provider for such phones (Stiftung Warentest).
- Have your plan and SIM card checked: both must be at least 4G capable, and your mobile provider can tell you (Bundesnetzagentur).
- If reception is weak, think about frequencies: older 4G and 5G devices may not use all the frequency bands your provider uses (Bundesnetzagentur).
Keypad phones are available with VoLTE too
The backup phone in the drawer
Many households keep an old phone as a backup. According to Bitkom, Germany’s digital industry association, there are 167 million unused mobile phones and smartphones in German households, and 86 percent of people in Germany aged 16 and over keep at least one at home (Bitkom). The most important reason is that they might need the device again: 48 percent give this reason (Bitkom). Stiftung Warentest expects the shutdown to hit mainly such old mobile phones in private households, the ones kept for emergencies in a drawer or the glove compartment (Stiftung Warentest).
A second point is often overlooked: without a SIM card there is no emergency call from a mobile phone in Germany. The German emergency call ordinance states that emergency calls from mobile phones without a SIM card are not permitted (Section 4 (8) no. 1 NotrufV). An active prepaid card without credit is enough, however, because emergency calls must also be connected when there is no credit left or the service is blocked due to late payment, but not after the line has been permanently canceled (Section 4 (3) NotrufV). For the backup phone this means: insert a valid SIM card, check the device for 4G and VoLTE and charge the battery regularly. A 2G-only device is no longer a backup phone after the shutdown, even with a SIM card.
Checking the alarm button, emergency watch and home emergency system
With emergency devices the situation is less clear, because many of them have no network indicator. A classic home emergency system consists of a base station and a radio transmitter worn on the wrist or as a pendant, as described in the article on home emergency alarms and the care insurance subsidy. As a rule, the transmitter only talks to the base station. Only the base station itself uses the mobile network, and only if it is connected by SIM card rather than the phone line. Mobile alarm buttons for on the go and emergency watches, on the other hand, carry the mobile module directly on the body.
The Federal Network Agency does not mention home emergency devices explicitly, but it does list emergency radio modules as an example of devices that are affected unless they are 4G or 5G capable (Bundesnetzagentur). Whether your device is one of them depends solely on the radio module built in, and the provider knows which one that is. For questions about an individual device, the Federal Network Agency refers to the manufacturer or the mobile network operator (Bundesnetzagentur). So ask in writing and keep the answer together with the device name. A written answer also helps relatives who take care of the replacement later.
- Which device do I have, with model name and serial number from the type plate?
- Does the base station or mobile alarm button transmit over the mobile network, and if so, over 2G, 4G or 5G?
- Does the device support voice calls over 4G, meaning VoLTE, or only data connections?
- Will the provider replace the device or the radio module, and will there be costs?
- Does a replacement change anything in the contract or in the billing with the care insurance fund?
- Who will test the emergency call with you after the replacement, and when?
For emergency watches and smartwatches with an SOS function, a look at the data sheet pays off. 13 percent of people over 65 used a smartwatch in 2023 (Bitkom 2023), and according to Bitkom many models now offer accident detection with an SOS function. Watches that make calls through the paired smartphone depend on that phone’s network standard. Watches with their own SIM or eSIM need LTE and VoLTE themselves. Which contacts a watch calls in an emergency and how fall detection is set up is explained in the article on the emergency watch with fall detection. After every changeover, a test alarm is part of the job; agree with the response center or the contact beforehand that it is only a test.
Alarm system, elevator, car: radio modules in everyday life
The Federal Network Agency explicitly mentions connected alarm systems in its question on how consumers can tell whether a device is affected; the answer refers to the manufacturer and the mobile network operator (Bundesnetzagentur). Telekom counts alarm systems among the Internet of Things devices that mostly used 2G and 3G in the past and advises providers and users to prepare the replacement of old radio modules now (Telekom). For an alarm system with a SIM dialer this means: call the installer, have the model and module named, plan the replacement. If you use smart home technology without a mobile connection, as described in the article on burglary protection for tenants, it usually depends on the internet connection rather than the mobile network. Only a built-in SIM module as a backup then belongs on the list.
If you live in a building with an elevator, there is little you can do yourself, but you should ask. Emergency radio modules in elevators are one of the Federal Network Agency’s examples (Bundesnetzagentur), and the Verbraucherzentrale advises replacing systems that still depend on 2G before the shutdown, above all alarm systems and elevator emergency phones (Verbraucherzentrale). The operator of the system is responsible, meaning the landlord, the property management or the owners’ association. It costs nothing to send the property management a short message asking whether the elevator emergency phone already runs over 4G or the landline.
For cars, the situation is clearly described. The 2G shutdown also affects the automatic emergency call system eCall; once all 2G networks are switched off, an automatic emergency call is no longer possible (Bundesnetzagentur). Some vehicle manufacturers run their own emergency call centers, which may be reached over 4G or 5G. As far as registration is concerned, the Federal Motor Transport Authority (Kraftfahrt-Bundesamt) gives the all-clear: an eCall that no longer works because of missing infrastructure will not be flagged at the general inspection under Section 29 StVZO, and the inspection can still be passed (Bundesnetzagentur).
New cars are already being converted. Since January 1, 2026, the authorities refuse new type approvals if the eCall does not meet the standards for packet-switched networks (Delegated Regulation (EU) 2024/1180). From January 1, 2027, the certificates of conformity of new vehicles approved after March 31, 2018 that do not meet these specifications are also no longer valid (Delegated Regulation (EU) 2024/1180). The stated reason is that network operators in all member states plan to phase out 2G and 3G between 2025 and 2030 (Delegated Regulation (EU) 2024/1180). If you drive an older car, ask the manufacturer or your garage whether there is an update for the emergency call system.
The device inventory for your household
The easiest way is a list on paper, just like in the image above: one line per device, three columns for “2G”, “4G/5G” and “check”. Walk once through your home, basement, garage and car. You are looking for every device that has a SIM card inside or, according to its type plate, a mobile connection. This includes devices belonging to relatives that are kept at your place, such as your mother’s spare phone or the alarm button a care service set up. For each device, note the model name, the provider and the date of your inquiry.
| Device | How to spot 2G | Whom to ask | What to do |
|---|---|---|---|
| Smartphone | indicator switches to “2G”, “E” or “GSM” during calls | manufacturer, mobile provider | turn on VoLTE, otherwise replace |
| Keypad phone | only “G”, “E” or no network indicator | data sheet, manufacturer | buy a device with VoLTE |
| Mobile alarm button | type plate, contract documents | home emergency provider | agree on a replacement in writing |
| Home emergency base with SIM | SIM slot, contract documents | home emergency provider | have the module checked, test the call |
| Emergency or tracking watch | data sheet without LTE and VoLTE | manufacturer, retailer | replace if 2G only |
| Alarm system with SIM | dialer in the control panel | installer | have the radio module replaced |
| Car with eCall | model year, owner’s manual | car manufacturer, garage | ask about an update |
A rough schedule is enough. This fall and winter, the list gets made. Over the course of 2027, replacement devices are bought, set up and practiced with relatives, and the providers’ answers are in. Before the first announced shutdown date in the summer of 2028 (Bundesnetzagentur), everything has then been replaced and tested once. If you buy a device with mobile connectivity in the meantime, pay attention to 4G and VoLTE from now on. Stiftung Warentest advises the same: anyone buying used phones or other devices with mobile reception should make sure they no longer depend on the old 2G network (Stiftung Warentest).
Switching without stress: new phone, data and habits
When a phone has to be replaced, the most important question is not the technology but the habit. Conventional mobile phones are not widely used overall, but among people over 75, 17 percent use one, more than in any other age group (Bitkom). If you get along well with buttons, choose a keypad phone again, just one with VoLTE. If you have been thinking about a smartphone anyway, now is a good occasion: in the 65 to 74 age group, 74 percent use a smartphone, among those over 75 it is 45 percent (Bitkom). Large text, read-aloud functions and a simple home screen can all be set up; how that works is explained in the article on making your phone easier to use.
- Contacts, including those stored only on the old SIM card
- Speed dial or favorites for the most important relatives
- Emergency contacts and medical details in the phone’s emergency information
- A ringtone and volume that you reliably hear
- The SIM card’s PIN and PUK, kept on paper in a safe place
- A charging cradle or cable in a fixed spot so that the device stays charged
We can take care of moving your data: with a data transfer to the new device, contacts, photos and messages come along, and the old device is erased on request. After that, the old device does not belong in the household trash. According to Bitkom, 16 percent of people over 65 do not know where to hand in old devices (Bitkom). Options include municipal collection points and recycling centers; large electronics retailers as well as large supermarkets and discount stores that regularly sell electrical devices are obliged to take them back free of charge under certain conditions (Bitkom). Beforehand, all personal data should be removed, the device reset and the SIM and memory cards taken out; details are in the article on selling an old phone and erasing data safely.
How Technik daheim helps with the switch
We come to your home in the Hildesheim area and the Leine valley and go through the list together with you. We check the network indicator and VoLTE on your phones, turn the function on where it is merely deactivated and make a test call. For the alarm button, emergency watch or alarm system, we read the type plate and data sheet, note the model and radio module and help you write the inquiry to the provider or installer. Replacing a built-in radio module is done by the provider or installer; we make sure you know what to ask and what the answer means.
If a phone needs to be replaced, we set up the new device, transfer contacts and photos and practice the most important steps until they stick, also in a smartphone course at home if you like. If your parents live further away, the inventory can be planned together with relatives, as described in the article on helping parents with tech from a distance. What else we set up is shown in the overview of our services, everything about our tech help for seniors is on its own page, and you can request an appointment via the contact form.
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