Wi-Fi calling, VoLTE and the 3G switch-off in Ireland

Short answer

Three, Vodafone, Eir, GoMo and Clear give you VoLTE (calls over 4G, shown as “4G Calling”) and Wi-Fi calling. 48, Tesco Mobile, Virgin Mobile, Lycamobile and An Post Mobile give you neither, so their calls run on 3G or 2G. Sky has VoLTE and says Wi-Fi calling is coming.

The 3G switch-off mostly hurts data on very old phones. It hurts calls only when the phone has no VoLTE on your SIM and 2G is weak where you stand. That combination is common enough in rural Ireland to be worth five minutes in Settings.

Who has what, by provider (August 2026)

Sources. three.ie “4G and Wi-Fi calling”, n.vodafone.ie “3G upgrade” and “Next Generation Voice”, eir.ie/3Gswitchoff and the Irish Examiner (28 May 2026), gomo.ie FAQ, An Post “3G network upgrade”, Virgin Media Ireland coverage support page, ComReg document 24/61. For 48, Tesco, Sky, Lycamobile and Virgin the VoLTE and Wi-Fi status is from bestinireland.ie’s November 2025 feature list and the providers’ own community threads, which is a secondary source. Lycamobile radio: Lyca moved from Three to Eir in late 2025 (Irish Examiner, May 2026; boards.ie reports from October 2025), which puts its customers on Eir’s October 2026 date.

eSIM detail lives on eSIM in Ireland. 5G detail lives on 5G in Ireland. This page is about voice.

What the 3G switch-off changes

Three things used to happen on 3G: calls, texts, and slow data. After the switch-off:

• Data moves to 4G and 5G. A 3G-only handset loses mobile data entirely. A 4G handset notices nothing.
• Calls and texts move to 4G if your phone and your provider both support VoLTE. Otherwise they drop to 2G. Vodafone calls 2G its “core voice coverage” and says it is staying. ComReg’s July 2024 guidance says no Irish network has notified it of any plan to withdraw 2G, and expects 2G to stay “for some years to come”.
• Coverage maps change. Spots that only had a 3G signal get a 4G one instead, or nothing. Eir says its 4G and 5G already reach 99% of the population.

Dates: Vodafone finished in October 2024. Three announced 2024 and has gone quiet; treat its 3G as gone. Eir starts 1 October 2026 and phases it over “a number of weeks”. ComReg notes Eir’s 3G licence runs until 11 March 2027, so there is no reason to expect a delay past that.

Eir’s own wording, via the Examiner: the change has “no impact” on most customers, 3G-only customers are contacted directly, and the fix “may include updating device settings, replacing a SIM card free of charge, or moving to a compatible device”. Customers aged 65 and over who need a 4G SIM get one posted automatically.

Is my phone affected? A two-minute check

1. Find the toggle. iPhone: Settings → Mobile Data → Mobile Data Options → Voice & Data → pick 4G or 5G with “VoLTE On”. Android: Settings → Connections (or Network) → Mobile networks → “VoLTE calls” or “4G Calling”. If the toggle exists and is on, you are fine.
2. No toggle? Either the phone is too old, or your provider has not sent the phone a VoLTE profile. On iPhone that is carrier-settings; on Android it is the provider’s name being on the phone-maker’s list. Grey-market imports and some budget Androids never get the Irish profile even when the hardware can do it.
3. Watch the status bar during a call. If the 4G or 5G icon vanishes and you see 3G, H, E or G, the call has fallen back. After the switch-off that fallback is 2G only.
4. Prepay or SIM-only on an MVNO? Check the table above. The phone can be perfect and the SIM still has no VoLTE.

Rule of thumb on age: iPhones from the iPhone 6 onward and most Androids sold from 2016 have the hardware. Three lists compatibility from the iPhone 7 Plus and iPhone 8 upward, so a 2015 iPhone 6s or SE (2016) may get no VoLTE on some Irish SIMs. Feature phones, Nokia C5-era handsets, and anything with a “3G” sticker are 2G-for-calls devices from here on. Vision Ireland flagged the Nokia C5 with Nuance Talks as a real loss for users with sight loss; it still calls and texts, on 2G.

The MVNO trap: 48, Clear, Tesco, Virgin, Lycamobile, An Post

VoLTE is not a property of the mast. It is a service the provider switches on for its own SIMs. Three runs VoLTE, but 48, Tesco and Virgin sell Three radio without it. Vodafone runs VoLTE, and Clear and Sky have it, but An Post does not. Eir runs it, and GoMo has it, but Lycamobile does not.

So on 48, Tesco, Virgin, Lycamobile or An Post your calls have always used 3G or 2G, whatever the status bar said about data. As 3G goes, that becomes 2G only. An Post customers are already there, because Vodafone’s 3G went in 2024; Lycamobile customers get there on Eir’s 1 October 2026 date. The 48 community thread on Three’s switch-off put it bluntly: there is no voice service over 4G on 48, and voice moves to 2G when 3G is gone. Where 2G indoors is weak, the phone rings out or the call never connects, while WhatsApp works perfectly on 5G.

What to do:

• If you are on 48 and your indoor calls are fine today, nothing changes. Three’s 2G is what you were already using.
• If you are on Lycamobile, the switch-off that matters is Eir’s, from 1 October 2026. With no VoLTE on Lyca, calls move to Eir’s 2G layer from then. Same-radio fix with VoLTE: GoMo.
• If indoor calls already fail, the €12.99 fixes are GoMo (Eir radio, VoLTE and Wi-Fi calling) or Clear (Vodafone radio, same). Pick by which radio actually reaches your house: best mobile for rural Ireland.
• An Post customers with a SIM issued before September 2025 should take the free replacement; An Post is moving everyone to 4G over 18 months.
• Porting takes a day and keeps the number: how to switch mobile.

Rural signal after 3G

3G ran on low-ish frequencies that travelled well, and on older masts in places nobody has upgraded since. In the countryside it quietly filled gaps between 4G cells. When it goes, one of three things happens at a given spot: the mast gets 4G (the usual case, the spectrum is reused), the spot falls to 2G for calls with no usable data, or the spot has nothing.

Eir says its 4G and 5G reach 99% of the population, and Opensignal named it first for 5G coverage. Population is not land area. If your house is in the 1%, you are exactly the customer the switch-off is aimed at contacting. Do not wait for the letter: check the ComReg coverage map for 4G at your Eircode, try a friend’s SIM from each radio for a weekend, and if calls are the worry, put Wi-Fi calling on a SIM that supports it. Our coverage ranking, with the cheap SIM on each radio, is here.

Alarms, car kits, payment terminals and trackers

ComReg’s 3G guidance lists what else is on these networks: smart meters, telecare pendants, home alarm diallers, remotely operated gates, GPS trackers and heating controllers. The Examiner adds smartwatches. Many were installed with a 2G or 3G module years ago and nobody has looked since. After a 3G switch-off, a 3G-only module stops reporting; a 2G module keeps going on 2G for now.

• Alarm dialler: ask the monitoring company which module is in the panel. A 4G/LTE-M swap is typically a small hardware job.
• Card terminals: most standalone terminals went 4G around 2020. Older 3G units show up as “no signal” after the date.
• Cars: factory eCall in cars approved before 2026 uses 2G/3G circuit-switched calling. ComReg says it is safe in Ireland because 2G stays. Older Bluetooth car kits do not care; they use the phone.
• Trackers and meters: anything with a SIM from an M2M reseller is the owner’s job to replace, not the network’s.

Wi-Fi calling as the fix for indoor dead zones

Wi-Fi calling routes your normal number, normal minutes and normal texts over any Wi-Fi you are on. No app, no second number. It is the right answer for thick-walled houses, basements, and the one corner of the kitchen where the phone dies. It needs three things: a handset that supports it, a provider that has enabled it on your SIM (table above), and Wi-Fi that is not blocking the traffic (corporate networks sometimes do).

How to turn it on:

• iPhone: Settings → Phone → Wi-Fi Calling → on. Then Settings → Mobile Data → Mobile Data Options → Voice & Data, and leave VoLTE on so calls hand over to 4G when you walk out the door.
• Android: Phone app → menu → Settings → Wi-Fi Calling, or Settings → Connections → Wi-Fi Calling. Some Samsung and Xiaomi phones hide it until the provider profile arrives; GoMo users on boards.ie report the dialler code *#*#869434#*#* unlocks the toggle. That is a community workaround, not a GoMo instruction.

Network by network:

• Eir and GoMo: on by default once enabled. Work abroad, and a call to an Irish number is an Irish call from your bundle, not roaming. Texts over Wi-Fi too.
• Vodafone: bill pay, business and newer PAYG. Voice only, no texts over Wi-Fi, and not supported while roaming. Calls are billed “the same rate as making a call over the mobile network”.
• Clear: free, Vodafone radio. No eSIM, so a plastic SIM in a supported phone.
• Three: every voice plan, prepay included. Ireland only; Three’s page says Wi-Fi calling “is only available in the Republic of Ireland now”.
• Sky: VoLTE yes. Wi-Fi calling was “coming soon” per Sky Ireland support in November 2025. We could not find a launch notice. Ask before buying for that reason.
• 48, Tesco, Virgin, Lycamobile, An Post: no. A third-party app (WhatsApp, FaceTime) over Wi-Fi is the workaround, or move to a SIM on the same radio that has it: Three for 48, Tesco and Virgin; GoMo or Eir for Lycamobile; Clear or Vodafone for An Post.

One more practical point: Wi-Fi calling does not need a SIM from the house’s broadband provider. An Eir Mobile SIM works over Virgin broadband and vice versa. What it needs is the mobile provider’s own SIM in the phone, so a Three “4G calling” profile does nothing on a 48 SIM.

Choosing a SIM by price and data rather than voice features: best SIM-only and best mobile network. Going eSIM at the same time: eSIM in Ireland.

About the author

Róisín Kelly

Mobile Networks Analyst

Róisín Kelly leads matched.ie’s mobile coverage and plan comparisons. She has driven over 15,000 km testing 4G and 5G signals across Ireland for Three, Vodafone, eir and Virgin Mobile.

7 years mapping real-world mobile performanceCertified Mobile Network Engineer (Ericsson & Nokia)Focus on rural coverage, data speeds and international roamingRegularly updates matched.ie’s mobile coverage heatmaps