VoLTE & Wi‑Fi Calling Abroad: Make Calls Reliably on eSIM

30 Oct 2025

If you travel with an eSIM, two features determine whether your calls “just work”: VoLTE (Voice over LTE) and Wi‑Fi Calling (VoWiFi). Both let you place normal voice calls without falling back to old 3G/2G networks. That matters because many countries have retired 3G and some are winding down 2G; in the United States, for example, VoLTE is essential for voice. This guide explains how to set up and troubleshoot VoLTE and Wi‑Fi Calling abroad, especially when you’re using a data‑only travel eSIM and want your home number reachable. We’ll cover carrier prerequisites, dual‑SIM line selection, roaming toggles, and practical fixes for the common pitfalls travellers hit. If you only skim one section, make it the “Set‑up recipes” and the troubleshooting tree. For destination specifics and compatible plans, browse our regional eSIMs, including Esim United States, Esim Western Europe and Esim North America, or explore all Destinations.

What VoLTE and Wi‑Fi Calling mean when you roam

VoLTE: Your phone makes standard cellular calls over 4G/LTE (or 5G) networks using IMS. It’s required in markets where 3G is shut down (e.g., USA). Without VoLTE support on the visited network, calls may fail or drop.
Wi‑Fi Calling (VoWiFi): Your carrier routes your normal phone number over any Wi‑Fi or mobile data connection. Abroad, this lets your home number ring even if you’ve disabled roaming on your home SIM. Think of it as “your number, over the internet”.

How this plays with eSIM: - Most travel eSIMs are data‑only. You keep your home SIM for your number and use Wi‑Fi Calling over your eSIM’s data. - If you buy a local eSIM with voice, you’ll use VoLTE for direct cellular calling in country. Ensure that plan and your device are VoLTE‑enabled on the visited network.

Pro tip: For the US, prioritise VoLTE‑capable devices and plans; see Esim United States. For multi‑country trips, check regional coverage like Esim Western Europe and Esim North America.

Prerequisites: what must be true for calls to work

Before boarding, confirm the essentials based on how you’ll call.

If you’ll keep your home number via Wi‑Fi Calling over a travel eSIM (most common)

Your phone supports Wi‑Fi Calling and it’s enabled on your home carrier account.
Your home carrier allows Wi‑Fi Calling while abroad. Many do; some restrict it by country or plan.
You can receive an SMS while on Wi‑Fi (needed for banking/2FA). Some carriers only deliver SMS over cellular; check before you rely on it.
Your travel eSIM provides a stable data connection (4G or better).
You know how to set “Default Voice Line” (iPhone) or “Preferred SIM for Calls” (Android) to your home SIM.

If you’ll use a local eSIM for voice via VoLTE

The eSIM plan includes voice service (many travel eSIMs are data‑only).
Your phone supports VoLTE on the visited carrier’s bands.
The eSIM/carrier has provisioned IMS/VoLTE on your line.
You’ve enabled VoLTE in device settings and allowed voice roaming.
For the US: No 3G fallback; without VoLTE your calls won’t work.

Planning resources: - Country pages highlight network specifics and plan types: Destinations - Popular country packs with excellent LTE coverage: Esim France, Esim Italy, Esim Spain

Set‑up recipes that just work

Recipe A: Keep your home number alive with Wi‑Fi Calling over a data eSIM

This gives you cheap local data and your usual number for incoming/outgoing calls and SMS.

iPhone (iOS 16/17): 1. Install and activate your travel eSIM. Confirm data works. 2. Settings > Mobile Data: - Mobile Data: select your Travel eSIM. - Turn on Data Roaming for the Travel eSIM. - For your Home SIM: keep Data Roaming OFF to avoid charges. 3. Tap Default Voice Line: set it to your Home SIM. 4. Wi‑Fi Calling: Settings > Phone > Wi‑Fi Calling > On (for Home SIM). If your carrier presents a terms screen, accept/verify. 5. Allow Mobile Data Switching: - Recommended: ON. iPhone will use data from your Travel eSIM to support calls on your Home SIM, without using home data roaming. - Safety check: keep “Data Roaming” on the Home SIM OFF, so switching cannot trigger paid roaming. 6. Make a test call with Wi‑Fi or strong 4G data. You should see “Wi‑Fi” or “Wi‑Fi Calling” in the status.

Android (Pixel/Samsung/OnePlus – wording varies): 1. Install and activate your travel eSIM. Confirm data works. 2. Settings > Network & Internet > SIMs: - Mobile Data: Travel eSIM. - Data Roaming: ON for Travel eSIM; OFF for Home SIM. - Preferred SIM for Calls: Home SIM. 3. Wi‑Fi Calling: Settings > Wi‑Fi Calling > On for Home SIM. - Calling preference: Prefer Wi‑Fi (or Wi‑Fi preferred) if available. 4. Optional: “Use SIM data for calls on other SIM” or “Dual SIM data switching” ON, if available. It will use Travel eSIM data to sustain Home SIM calls. 5. Test an inbound and outbound call.

Pro tips: - Keep the Phone app’s line selector visible before dialling so you don’t accidentally place a call on the travel eSIM. - If SMS over Wi‑Fi isn’t supported by your home carrier, briefly enable home SIM cellular (still with data roaming OFF) to receive 2FA codes.

Recipe B: Use a local eSIM for native voice via VoLTE

Use this if your eSIM includes minutes or you need a local number.

All devices: 1. Confirm the eSIM plan includes voice. 2. Settings > Mobile/Cellular > enable VoLTE/4G Calling for that line. 3. Enable Voice Roaming if you plan to cross borders within the plan’s region (e.g., EU). 4. Network mode: 4G/5G Auto. Avoid 3G/2G‑only modes. 5. Place a test call. Check the status bar shows 4G/VoLTE during the call (not “3G/ H/ E”).

If calls drop to 3G or fail: - Update carrier settings (iPhone prompt) or install the APN/IMS config provided. - Reboot; re‑insert eSIM if needed. - Manually select a different partner network in the same country.

Country specifics and planning

United States: 3G is shut down; VoLTE is mandatory for cellular calling. If your phone or plan doesn’t do VoLTE on the visited network, use Recipe A (Wi‑Fi Calling over data) as your fallback. See Esim United States.
Canada, Mexico and USA trips: plan for cross‑border behaviour and partner networks. Check Esim North America.
Western Europe: Broad VoLTE support and EU‑wide roaming on many plans. Recipe A works well for keeping your home number; Recipe B is easy if your eSIM includes voice. See Esim Western Europe.
Popular single‑country picks with strong LTE: Esim France, Esim Italy, Esim Spain.

Travelling as a team? Centralise setup guidance and plan choice via For Business or coordinate with your reseller through our Partner Hub.

Troubleshooting tree: call fails or drops when abroad

Start with your scenario and follow the checks in order.

1) My home number doesn’t ring; I’m using a data eSIM - Is Wi‑Fi Calling enabled on the home SIM? Turn it on. - Can your device reach data? Open a web page; if not, fix data/APN first. - Carrier allows Wi‑Fi Calling abroad? If unsure, test on hotel Wi‑Fi; if it only works on your home ISP, your carrier may restrict it. - iPhone: Allow Mobile Data Switching ON; Home SIM Data Roaming OFF. - Android: Wi‑Fi Calling preference = Prefer Wi‑Fi; Dual SIM data switching ON (if available). - Still no joy: toggle Airplane Mode ON then enable Wi‑Fi only; try calling. If it now works, your carrier might prioritise Wi‑Fi Calling when cellular is off.

2) Calls fail in the USA on a local SIM/eSIM - Confirm the line supports VoLTE on that network. - Device: VoLTE/4G Calling ON; network mode 4G/5G. - If calls drop to 3G or never connect, switch to a different partner network or use Recipe A as a fallback.

3) I can call but SMS 2FA won’t arrive - Some carriers don’t deliver SMS over Wi‑Fi. Temporarily allow the home line to register on cellular (keep Data Roaming OFF) to receive codes. - Ask your bank to enable app‑based or email 2FA as a travel workaround.

4) Calls use the wrong line - Set Default Voice Line (iPhone) or Preferred SIM for Calls (Android) to the correct SIM. - Before dialling, check the SIM selector in the Phone app; on iPhone, long‑press the call button to switch lines.

5) Wi‑Fi Calling toggles are missing - Your carrier or device may not support it, or it’s not provisioned. Update carrier settings/OS, or contact your carrier to enable. - Some countries restrict VoIP/Wi‑Fi Calling; try a different network/Wi‑Fi.

6) Audio is poor or calls drop on Wi‑Fi - Switch Wi‑Fi to 5 GHz, or move closer to the router. - Turn off VPN; some VPNs break IMS traffic. - Disable battery/data savers that restrict background data.

Pro tips and gotchas

Prefer Wi‑Fi Calling for long international calls. It uses your home plan’s domestic rates for many carriers, but always check your tariff.
Avoid bill shock: keep Data Roaming OFF on your home SIM. You can still use Wi‑Fi Calling via the travel eSIM’s data if mobile data switching is enabled.
In dual‑SIM mode, iPhone can show “Primary” and “Secondary”; rename them to “Home” and “Travel” so you don’t mis‑dial.
Emergency calls: Wi‑Fi Calling may not route accurately abroad. Know the local emergency number and, where possible, place emergency calls over the local cellular network.
US travellers: bring a VoLTE‑ready device. Older handsets that relied on 3G voice won’t work for calling.
Business itineraries: standardise a setup playbook (Recipe A) for your team and test before departure. See For Business.

FAQs

Q: What’s the simplest way to keep my number when I use a travel eSIM? A: Use Wi‑Fi Calling on your home SIM over your travel eSIM’s data (Recipe A). Set your travel eSIM as the data line, keep data roaming off on the home SIM, and enable Wi‑Fi Calling.

Q: Do all travel eSIMs support voice calls with VoLTE? A: Many travel eSIMs are data‑only. If you need native voice, choose an eSIM that explicitly includes minutes/voice and make sure VoLTE is supported in your destination.

Q: Will Wi‑Fi Calling work in every country? A: Not always. Most carriers support it internationally, but some restrict usage by location or plan. A few countries and networks limit VoIP/Wi‑Fi Calling. Test on both Wi‑Fi and mobile data at your destination.

Q: My SMS codes aren’t arriving while abroad. Why? A: Some carriers don’t deliver SMS over Wi‑Fi Calling. Temporarily register your home SIM on cellular (with data roaming off) to receive them, or switch to app‑based 2FA.

Q: In the USA, my calls fail on a local SIM. What now? A: You likely need VoLTE on that network. Enable VoLTE/4G Calling, set network mode to 4G/5G, and try another partner network. If still failing, use Wi‑Fi Calling over your travel eSIM’s data as a fallback. See Esim United States.

Q: How do I avoid using the wrong SIM for calls or data? A: Set your Default Voice Line/Preferred SIM for Calls to your chosen number, and your Mobile Data line to the travel eSIM. On iPhone, consider turning on “Allow Mobile Data Switching” with data roaming off on your home SIM to stay safe.

The quick checklists

Before you fly: - Update iOS/Android and carrier settings. - Confirm Wi‑Fi Calling is enabled on your home SIM and supported abroad. - Decide your calling method: Wi‑Fi Calling over data (Recipe A) or local voice via VoLTE (Recipe B). - Verify your device is VoLTE‑ready for the region (critical for the USA). - Save our destination links: Destinations, Esim Western Europe, Esim North America.

On arrival: - Activate data on your travel eSIM; test browsing. - Set line selection: Data = Travel eSIM; Calls = Home SIM (if using Recipe A). - Enable Wi‑Fi Calling for the line you’ll use to call. - Place a short test call and send yourself a test SMS.

Next step: choose the right regional plan and follow the setup recipe for your device. Start with Destinations to pick your eSIM for the country or region you’re visiting.

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Andes Highlights (3 Weeks): Peru–Bolivia–Chile–Argentina Connectivity

Planning a south america itinerary 3 weeks through the high Andes? This route stitches together Peru’s Sacred Valley, Bolivia’s La Paz and Salar de Uyuni, Chile’s Atacama Desert, and northern Argentina’s quebradas or Mendoza wine country—often by long-distance bus and a couple of short flights. Connectivity is different at altitude: coverage is strong in cities but drops in high passes and salt flats; bus Wi‑Fi is patchy; border towns can be blackspots. The smart move is an eSIM with multi‑country coverage, backed by offline maps, offline translations, and a simple routine for crossing borders by bus without losing service. Below you’ll find a practical, connectivity-first itinerary; checklists to prep your phone, apps and documents; and on-the-ground tips for staying online where it matters: booking transport, hailing taxis, backing up photos, and navigating when the signal disappears.If you’re transiting via Europe or North America, you can also add a layover eSIM to stay connected door-to-door. Start with our country list on Destinations, then follow the steps, and you won’t waste time chasing SIM shops at 3,500 metres.The 3‑week Andes route at a glanceWeek 1: Peru (Cusco, Sacred Valley, Machu Picchu) - Fly into Cusco (or Lima then connect). - Base in Cusco; day trips to Pisac/Chinchero/Maras–Moray. - Train to Aguas Calientes; Machu Picchu visit; return to Cusco or continue to Puno/Lake Titicaca.Week 2: Bolivia and Chile (La Paz, Uyuni, San Pedro de Atacama) - Bus/collectivo via Copacabana to La Paz. - Fly or overnight bus to Uyuni. - 3‑day Uyuni–altiplano tour ending in San Pedro de Atacama (Chile).Week 3: Chile and Argentina (Atacama to Salta or Mendoza/Buenos Aires) - Choose: - North: San Pedro to Salta/Jujuy by bus; fly to Buenos Aires. - Or South: San Pedro–Calama flight to Santiago; bus or flight to Mendoza; onward to Buenos Aires.Connectivity notes (quick): - Cities: generally strong 4G/4G+; 5G in major hubs (Santiago, Buenos Aires). - Altitude/rural: expect long no‑signal stretches (Uyuni, altiplano passes, Paso Jama). - Bus Wi‑Fi: often advertised, rarely reliable. Plan to be offline onboard. - Border regions: networks switch; a multi‑country eSIM avoids sudden loss.eSIM vs local SIMs for a 4‑country tripFor a route with multiple borders and remote legs, eSIM wins on time and reliability.What a multi‑country eSIM gets you: - One plan across Peru, Bolivia, Chile, Argentina (check coverage per country on Destinations). - No passport/SIM registration queues at kiosks. - Keep your home number active on the physical SIM for calls/SMS codes. - Instant top‑ups if you burn data on photos or navigation.When a local SIM still helps: - Long stay in one country with heavy data use (e.g., a month in Buenos Aires). - Dead zones where a different local network performs better (rarely worth the hassle on a 3‑week pace).Practical approach: - Use an eSIM as your primary data line across all four countries. - If you find a specific local network far better in one region, add a cheap local SIM and keep the eSIM as backup.Device readiness checklist (before you fly)1) Check eSIM compatibility and SIM‑lock status on your phone.2) Buy and install your eSIM while on home Wi‑Fi. Keep a PDF/printed copy of the QR code.3) Label lines clearly (e.g., “eSIM Andes Data”, “Home SIM”).4) Turn on data roaming for the eSIM; leave roaming off for your home SIM to avoid charges.5) Set up dual‑SIM rules: data on eSIM; calls/SMS default to home SIM if needed.6) Download offline: Google Maps/Organic Maps for all target regions; language packs (Spanish at minimum); bus/air tickets; hotel confirmations.7) Cloud backups: set to upload on Wi‑Fi only; pre‑create shared albums for travel companions.8) Test tethering/hotspot with your laptop/tablet.If you’re transiting popular hubs, consider a short layover eSIM: - USA connections: add an Esim United States or a broader Esim North America.- Europe connections: Madrid/Barcelona? Use an Esim Spain. Paris or Rome? See Esim France and Esim Italy. Multi‑country layovers? Try Esim Western Europe.City‑by‑city connectivity notesCusco & the Sacred Valley (Peru)Coverage: Good in Cusco city; variable in high villages (Maras/Moray) and along Inca Trail approaches.Tips: Download Sacred Valley maps offline; pin viewpoints and ruins. most taxis use WhatsApp—save your accommodation’s number.Machu Picchu/Aguas Calientes: Patchy to none at the citadel. Upload your photos later; don’t rely on live ticket retrieval.Lake Titicaca: Puno and CopacabanaPuno: Reasonable 4G; bus terminals crowded—screenshot QR tickets.Crossing to Copacabana: Expect a signal drop around the border; have directions saved offline.La Paz (Bolivia)Good urban 4G; the cable car network has decent signal but tunnels do not.Yungas/“Death Road” tours: Mountain valleys cause dead zones—share your emergency contacts with the operator, carry a charged power bank, and don’t plan remote calls.Uyuni and the Altiplano (Bolivia to Chile)Uyuni town: OK 4G; ATMs finicky—use Wi‑Fi for banking apps.Salt flats/lagunas: Assume offline for most of the 3‑day tour. Guides often carry satellite phones; agree a pickup time/place in San Pedro and preload your map route.San Pedro de Atacama (Chile)Town: Solid 4G; accommodations often have Wi‑Fi but speeds vary.Geysers, Valle de la Luna: Offline navigation essential; sunrise trips start before mobile networks wake up in some areas.Salta/Jujuy or Mendoza/Buenos Aires (Argentina)Salta/Jujuy: Good city coverage; quebradas have long no‑signal sections.Mendoza: City 4G/5G; vineyards outside town can be patchy.Buenos Aires: Strong 4G/5G; ideal for cloud backups and large downloads before you fly home.Border crossings by bus: step‑by‑stepThe big ones on this route: Peru–Bolivia (Puno/Copacabana), Bolivia–Chile (Uyuni–San Pedro via Hito Cajón), Chile–Argentina (Paso Jama to Salta or Los Libertadores to Mendoza).How to keep service and sanity:1) The day before:- Top up your eSIM data.- Confirm your plan includes both countries you’re entering/leaving.- Download offline maps for both sides of the border and your town of arrival.- Save bus company WhatsApp and terminal address offline.2) On departure morning:- Keep a paper copy or offline PDF of tickets, insurance, and accommodation proof.- Charge phone and power bank; pack a short cable in your daypack.3) On the bus:- Don’t count on bus Wi‑Fi. Keep your eSIM as primary, but expect drops near mountain passes.- If your phone supports it, enable “Wi‑Fi calling” for later when you reach accommodation Wi‑Fi.4) At the border posts:- Data may be unavailable. Keep QR codes and booking numbers offline.- After exiting one country and entering the next, toggle Airplane Mode off/on to re‑register on the new network.- If the eSIM doesn’t attach, manually select a network in Mobile Settings.5) Arrival:- Send your accommodation a quick WhatsApp when you’re back online.- Recheck your eSIM’s data roaming is on; confirm you’re on an in‑country network, not a weak roaming partner.Pro tips: - Dual profiles: If your eSIM allows, keep a secondary profile for a different network in the same country—helpful in border towns.- Cash buffer: Some border terminals don’t accept cards; download a currency converter for offline use.Offline survival kit (5‑minute setup)Maps: Download regions for Cusco, Sacred Valley, Puno, La Paz, Uyuni, San Pedro, Salta/Jujuy or Mendoza, and Buenos Aires.Translations: Download Spanish for offline use; add phrasebook favourites (bus tickets, directions, dietary needs).Documents: Save PDFs of passports, tickets, hotel addresses; star them for quick access.Rides: Screenshots of pickup points; pin bus terminals and hotel doors.Entertainment: Podcasts and playlists for long bus legs, set to download on Wi‑Fi only.Altitude and your tech: what changesCoverage gaps lengthen: Fewer towers at high altitude; valleys can block signal. Assume offline on remote excursions.Batteries drain faster in cold: Keep your phone warm and carry a power bank (10,000–20,000 mAh).Hotel Wi‑Fi may be congested: Schedule big uploads (photo backups, app updates) for big-city stays like Santiago or Buenos Aires.GPS still works offline: Your blue dot shows on offline maps without data—preload everything.Data budgeting for 3 weeksTypical traveller usage across this route: - Messaging/Maps/Bookings: 0.2–0.5 GB/day- Social and photo sharing: 0.3–0.7 GB/day- Occasional video calls/streaming: 0.5–1.0 GB/dayFor a mixed-use trip, plan 15–25 GB for 3 weeks. Heavy creators should double it and upload over hotel Wi‑Fi when possible. If you work remotely, consider a higher‑capacity plan and a backup eSIM; see our guidance on For Business.Practical route with transport and connectivity cuesDays 1–4 Cusco base: Strong city signal; day trips may be spotty—go offline-ready.Days 5–6 Machu Picchu: Expect no service at the ruins; sync tickets ahead.Days 7–8 Puno to La Paz via Copacabana: Border signal drop; re‑register networks after crossing.Days 9–11 Uyuni tour to San Pedro: Treat as offline; charge nightly; carry spare cables.Days 12–14 San Pedro: Stable in town; tours offline; top up data before Paso Jama.Days 15–17 Salta/Jujuy or Mendoza: Good urban 4G; rural patches are offline.Days 18–21 Buenos Aires: Strongest connectivity of the trip; clear your uploads and map downloads for the flight home.Partnering and stopover extrasHospitality and tour operators in the Andes: help your guests stay connected—explore co‑branded solutions via our Partner Hub.Transatlantic flyers: test your eSIM setup on a layover with an Esim United States or Esim Western Europe before hitting high-altitude blackspots.FAQs1) Do I need a local SIM in each country?No. A multi‑country eSIM covering Peru, Bolivia, Chile and Argentina is simpler and works well for a 3‑week pace. Consider a local SIM only if you’ll spend longer in one country and want the absolute best regional coverage.2) Will my WhatsApp number change with an eSIM?No. WhatsApp is tied to your registered number, not your data line. Keep your home SIM active for voice/SMS (roaming off if you wish), and use the eSIM for data—WhatsApp continues as normal.3) Can I hotspot to my laptop or camera?Yes. Enable tethering on your eSIM. Mind your data: cloud backups and OS updates can burn gigabytes—set them to Wi‑Fi only or schedule in big cities.4) What if there’s no signal on the Uyuni/Atacama legs?That’s expected. GPS still works offline. Pre-download maps and translations, carry a power bank, and sync plans with your tour operator before departure.5) Will I get roaming charges at borders?If you’re using a multi‑country eSIM with coverage in both countries, you won’t incur extra roaming fees from your home carrier. Keep roaming off on your home SIM to avoid accidental use.6) I’m connecting via Europe or the US—worth getting a layover eSIM?Yes. It’s an easy way to test your setup and stay reachable. Try Esim North America or country options like Esim Spain, Esim France, or Esim Italy for common hubs.Next step: Browse South America coverage options and build your plan on Destinations.

31 Oct 2025

Turkey IMEI Registration for Tourists: Deadlines, Fees & Workarounds (2025)

Planning to use a local Turkish SIM or eSIM in your phone? Turkey operates one of the strictest IMEI registration regimes in the world. If your device isn’t whitelisted within a defined window, Turkish networks will stop serving it with local SIMs. The good news: short‑term travellers can usually avoid registration entirely with a few smart setup choices. The bad news: if you need a Turkish number for more than a few months, the rules and fees bite hard.This guide explains what counts as “use in Turkey,” the 120‑day clock, who can actually register, realistic workarounds for tourists, and a step‑by‑step process if you’re eligible to register. We also cover dual‑SIM tactics, what happens on day 121, and how to keep your primary phone usable while still getting cheap local data. For route‑planning and eSIM options across the region, check our country pages via Destinations.Quick take: who needs to care?You only need to register an IMEI if you plan to use a Turkish (local) SIM/eSIM in that device beyond the grace period.Visitors using their foreign SIM with roaming do not need to register. Your device won’t be blocked for roaming.Tourists generally cannot register unless they have a Turkish ID or residence permit (foreigner ID). Registration is designed for residents, not short‑stay visitors.How Turkey’s IMEI rules work in 2025What counts as “use in Turkey”“Use” is when your device connects to a Turkish mobile network with a Turkish SIM/eSIM (a Turkish IMSI) in that device.Merely being powered on, using Wi‑Fi, or roaming on your foreign SIM does not start the clock.Hotspotting from another device or using a pocket Wi‑Fi does not affect your phone’s IMEI status.The 120‑day clock, explainedOnce a Turkish SIM/eSIM is used in your phone:1) Day 0: First attach to a Turkish network with a Turkish SIM/eSIM. The IMEI is “seen.” 2) Days 1–120: Your device works normally with Turkish SIMs on all networks. 3) Day 121+: If the IMEI has not been registered, Turkish networks will refuse service to that device when using any Turkish SIM/eSIM. The device still works on Wi‑Fi and with foreign (roaming) SIMs. 4) The block is device‑level for local SIM use. Swapping to another Turkish SIM won’t help once blocked.Key nuance: The clock is tied to the device IMEI + Turkish SIM use, not your passport or the specific Turkish SIM.Registration eligibility and fee (2025)Eligible persons: Turkish citizens and foreign residents with a Foreigner Identification Number (YKN) and e‑Devlet access. A standard tourist without a residence permit typically cannot complete registration.Timing: Registration must generally be done within 120 days of your most recent entry into Turkey and within 120 days of first local SIM use.Frequency: One device registration is allowed per person per three years.Fee: The IMEI registration tax (“harç”) is high and indexed. Expect a substantial fee in the tens of thousands of TRY (commonly cited around 30–45k TRY in 2024/25). Rates change with annual revaluation—check the current amount on the official e‑Devlet/BTK portals before paying.Practical reading: if you’re a short‑term visitor, it’s rarely worth attempting registration.Can tourists register? Realistic pathsMost tourists cannot register because they lack a Turkish ID/YKN and e‑Devlet login. Ad‑hoc “in‑store” passport registrations have largely disappeared from legitimate channels.If you have a residence permit (YKN) or you’re moving to Turkey, you can register your device in your own name via e‑Devlet within the 120‑day window.Avoid third parties offering to “register for you.” Besides compliance risks, owner‑linking rules mean a device registered under someone else may not reliably work with your line in future.Step‑by‑step: How to register an IMEI in Turkey (if eligible)This is a how‑to for residents/long‑stayers with YKN and e‑Devlet. Tourists without YKN should skip to the workarounds.1) Confirm your IMEI(s) - Dial *#06# to see your IMEI. For dual‑SIM phones, note both IMEIs. - Ensure the IMEI belongs to the device you intend to use in Turkey.2) Check the deadline - Verify your last entry date into Turkey and ensure you’re within 120 days. - If your device has already used a Turkish SIM, ensure day 121 hasn’t passed.3) Verify the current fee - Find the latest “IMEI registration fee (harç)” on official channels (BTK/e‑Devlet). The figure changes periodically.4) Pay the fee - Pay the IMEI registration tax at designated banks, tax offices, or online (where available). - Keep the receipt; you’ll need payment reference details.5) Apply via e‑Devlet - Log in to your e‑Devlet account. - Navigate to BTK’s IMEI registration service and enter: - IMEI (or both, if dual‑SIM) - Passport/entry details - Payment reference/receipt information - Upload any requested scans (passport, entry stamp/boarding pass) as instructed.6) Wait for confirmation - Approval times vary. Once whitelisted, your IMEI should function with Turkish SIMs beyond day 120.7) Test with your line - Insert your Turkish SIM/eSIM and place a call or use data. If service is still blocked, contact your operator with your approval reference.Pro tip: - Register both IMEIs on dual‑SIM devices if you intend to use Turkish service on either slot. Leaving one unregistered can cause odd behaviour when switching lines.Practical workarounds for visitors (no registration needed)If you’re in Turkey for a few days or weeks—or even a couple of months—these options keep you online without entering the IMEI maze.1) Keep your foreign SIM active (roaming)Using your home SIM with roaming does not trigger the IMEI block and does not require registration.Combine this with a travel eSIM in another device (see below) to get local‑ish data prices while keeping your primary number reachable.2) Use a travel eSIM/SIM in a secondary device or hotspotPut the Turkish/local data eSIM into a spare phone, a pocket Wi‑Fi, or a cellular iPad/MiFi. Create a hotspot for your main phone.Your main phone never uses a Turkish SIM, so no 120‑day timer starts for it.Handy if you carry a work phone and a personal phone—dedicate one as the “data hub.”3) Smart dual‑SIM setups that avoid the blockSlot A: your foreign SIM (roaming, voice/SMS continuity).Slot B: do not add a Turkish SIM to your primary phone if you’ll exceed 120 days. Instead, put any Turkish/local eSIM in a secondary device.If you must put a Turkish eSIM in your main phone, plan to swap it out before day 120—or accept local‑SIM blocking after that date.4) Regional eSIMs for multi‑country tripsIf Turkey is part of a wider itinerary, a regional plan can be simpler than buying multiple local SIMs.See Destinations for current coverage maps and options near Turkey.Heading to Europe before/after? Consider Esim Western Europe, or single‑country options like Esim France, Esim Italy, or Esim Spain.Flying via the US or Canada? Check Esim North America or country‑specific pages like Esim United States.5) What not to doDon’t attempt IMEI tampering or “cloning.” It’s illegal in many jurisdictions and can brick your device or get it barred.Avoid grey‑market registration offers. Besides compliance risks, devices may later be re‑blocked or tied to the wrong identity.Common scenarios: what happens?I used a Turkish eSIM for 10 days and left the country:No problem. If you re‑enter later and insert a Turkish SIM again, the previous “first‑seen” date may still govern. Keep track of the 120‑day window.I’m staying 4–6 weeks, need lots of data:Use a local eSIM in a secondary device/pocket hotspot. Keep your main phone on roaming.I inserted a Turkish SIM in my main phone and it’s day 130:Expect no service from Turkish SIMs in that device. Your foreign SIM will still roam fine. You could move the Turkish SIM to a different (unseen/registered) device.I have a residence permit:You can register (fee applies), within 120 days of entry and first use. Plan this early to avoid day‑121 surprises.I bought a second‑hand phone in Turkey that’s “registered”:Ensure the IMEI is currently whitelisted and not tied to a different owner’s limitations. Ask the seller to demonstrate with a Turkish SIM and your line before you pay.Pro tips to stay connected (and save)Screenshot your IMEI and keep payment/entry documents handy if you plan to register.If family members travel together, dedicate one device as the data hotspot with a local plan; everyone else stays on roaming/Wi‑Fi.Some airline stopovers complicate roaming zones. If your route includes Europe or North America, check regional plans in advance via Destinations.Business travel teams: set a consistent device/SIM policy to avoid accidental day‑121 blocks. Centralised buying and guidance can help—see For Business. Travel partners and resellers can work with us via the Partner Hub.FAQQ: Do tourists have to register their phone IMEI in Turkey? A: No, not if you only use your foreign SIM with roaming. Registration is only required if you want to keep using a Turkish SIM/eSIM in that device beyond 120 days.Q: How long can I use a Turkish SIM before registration is required? A: Up to 120 days from the first time your device connects to a Turkish network with a Turkish SIM/eSIM. After that, the device will be blocked for Turkish SIM use unless registered.Q: How much does IMEI registration cost in 2025? A: It’s a high, indexed tax typically reported in the tens of thousands of TRY. Exact amounts change—check the current fee on official e‑Devlet/BTK portals before paying.Q: Can I register as a tourist with just my passport? A: In practice, no. You generally need a Turkish ID or a Foreigner Identification Number (residence permit) and e‑Devlet access. Tourists should use the workarounds in this guide.Q: If my device is blocked for Turkish SIMs, will my home SIM still work? A: Yes. The block applies to Turkish SIM use on that device. Foreign SIMs on roaming and Wi‑Fi continue to work.Q: I have a dual‑SIM phone. Do I need to register both IMEIs? A: If you plan to use a Turkish SIM on either slot beyond 120 days, register both IMEIs to avoid service issues when switching lines.Next step: See current coverage and Turkey travel options on Destinations.

30 Oct 2025

Students Studying Abroad: eSIM Setup, Budget Plans & Keeping Your Number

Heading abroad for a semester or a full degree? Staying connected is the backbone of a smooth start: maps for orientation week, group chats with classmates, OTPs from your bank, timetables, and calls home. An eSIM gives you local-rate data without the shock of roaming bills, keeps WhatsApp running on your usual number, and can be topped up remotely by parents or sponsors. This guide shows you how to set up an eSIM for students, pick the cheapest sensible plan for your study destination, and keep your home number active for security codes. You’ll also get safety tips and troubleshooting that work in the real world. Whether you’re off to Paris, Milan, Madrid, or New York, we’ll help you choose a regional or country plan now and switch on data the moment you land. Browse coverage by country on Destinations, or jump straight to Esim Western Europe or Esim North America.Why eSIM beats roaming for study abroadAn eSIM is a digital SIM you install via QR code. It’s ideal for students:Low cost: Local and regional eSIMs usually beat home-network roaming by a large margin.Instant activation: Install before you fly; switch it on at the airport.Dual lines, one phone: Keep your home SIM for OTP banking and WhatsApp; use the eSIM for cheap data.Flexible durations: 7, 15, 30‑day and multi-month options, plus easy top-ups.Regional cover: One plan can cover multiple countries during weekend trips.Pro tip: If you’ll travel widely across the EU, choose a regional plan like Esim Western Europe. For Canada/USA travel, look at Esim North America. If you’re staying in one country, a country-specific plan (e.g., Esim France, Esim Italy, Esim Spain or Esim United States) is often cheapest.Pre-departure checklist for studentsRun through this before you fly.1) Confirm your phone supports eSIM and is unlocked- iPhone XR/XS or newer, most recent Google Pixel, Samsung Galaxy S20+ and above support eSIM.- Check your device settings: Search “eSIM” or “Add mobile plan”.- Ask your home carrier to unlock your handset if it’s locked.2) Decide your setup- Keep your physical/home SIM inserted to receive OTP texts and calls.- Use a local/regional data eSIM for affordable internet.- Turn off Data Roaming on your home SIM to avoid accidental charges.3) Pick the right plan and duration- Short programmes or orientation? 10–15 GB for 2–4 weeks is usually enough.- A semester? 20–40 GB per month is a good baseline if you have campus Wi‑Fi.- Frequent city breaks in Europe? Choose Esim Western Europe.- US/Canada semester? Choose Esim North America or Esim United States.4) Share your plan details with family- Let parents/sponsors know your chosen plan so they can top up or resend a QR if you lose yours.- Store the QR/email in cloud notes.5) Back up and update- Update iOS/Android before travel.- Back up contacts, photos, and authenticator codes.Step-by-step: Installing and activating your eSIMYou can install at home over Wi‑Fi and activate on arrival, or install/activate at the airport after landing.1) Buy your plan- Choose your destination on Destinations and select a country or regional plan.- Complete purchase; you’ll receive a QR code or activation link.2) Add the eSIM to your phone- iPhone: Settings > Mobile Data > Add eSIM or Add Mobile Plan > scan QR.- Android (varies): Settings > Network & Internet > SIMs > Add eSIM > scan QR.If you only have the activation code, select “Enter details manually”.3) Label your lines- Name the eSIM “Study Data” and your home SIM “Home OTP”.4) Set defaults and roaming- Set Mobile Data to use “Study Data” (the eSIM).- Turn OFF Data Roaming on the “Home OTP” line.- Leave Voice/SMS on “Home OTP” if you need to receive calls/SMS, but place most calls over WhatsApp/FaceTime.5) Activate on arrival- After landing, switch on the eSIM line and ensure Data Roaming is ON for that line (it’s local roaming within the plan’s coverage).- Wait for signal; if no data, toggle Airplane Mode or reboot.6) Test- Load a map and a web page.- Send yourself a WhatsApp message.- Ask your bank to send a test OTP if possible.Pro tips:- APN usually configures automatically. If data won’t start, check the eSIM’s APN settings in your plan email and enter them manually.- Keep the QR and plan email safe; you might need them if you switch phones.Budget-friendly plan sizing for studentsUse these guide rails to avoid overpaying.Light user (messages, maps, email, ride-hailing, occasional video): 5–10 GB/month.Typical student (classes, social media, light streaming on Wi‑Fi first): 15–25 GB/month.Heavy user (lots of video/Hotspot, off-campus housing with weak Wi‑Fi): 30–50 GB/month.Regional picks:- EU/Schengen semester with weekend trips: Esim Western Europe saves money compared with buying separate country plans.- North American campuses and cross-border trips: Esim North America.- Country stays: choose Esim France for Paris or Lyon, Esim Italy for Rome or Milan, Esim Spain for Barcelona or Madrid, or Esim United States for US campuses.Ways to save:- Use campus and accommodation Wi‑Fi for updates and video calls.- Download lectures and playlists over Wi‑Fi.- Turn off auto-play in social feeds.- Enable Low Data Mode/Data Saver in your phone settings.- Share a single, larger regional plan across trips rather than buying multiple short plans.Keeping your number for OTPs and WhatsApp continuityBanks, government portals, and university systems often send one-time passwords (OTPs) to your home number. Here’s how to keep that working while using a local data eSIM.Keep your home SIM in the phone and active for calls/SMS, but with Data Roaming OFF to avoid fees.Set your iPhone/Android to use the eSIM for mobile data, keeping the home SIM for calls/SMS.WhatsApp: You can continue using your existing WhatsApp account tied to your home number even if data comes from the eSIM. Do not change your WhatsApp number unless you intend to move permanently.If your bank supports app-based authentication or email OTPs, enable them before you travel as a backup.If your home carrier offers Wi‑Fi calling at no extra cost, enable it to receive calls over Wi‑Fi when available.Pro tip: If you must put your home SIM in a safe place (e.g., you’re using a single‑SIM phone), move critical services to app‑based authentication first and update recovery options before you leave.Parental top-ups and remote supportParents or sponsors can keep you connected without you sharing card details.They can purchase a new plan or top-up and forward the QR/activation email to you.Share your plan choice and timing so they buy the right validity window.Keep a shared note with your chosen eSIM product link (e.g., Esim Western Europe or Esim United States) to avoid mistakes.If you’re in a larger cohort, study-abroad offices can coordinate connectivity via For Business, and student organisations can explore benefits via the Partner Hub.Safety and sensible settings for students abroadA few settings and habits go a long way.Save local emergency numbers and your university’s 24/7 support line.Enable “Send Last Location” in Find My/Find My Device. Share your location with a trusted friend.Download offline maps for your host city and campus.Turn on data alerts and caps to avoid accidental overuse.Add campus security and programme coordinators as phone contacts.Keep a small balance on your home SIM for incoming SMS in case your carrier charges for it.Troubleshooting: quick fixesIf things don’t work first time, try this sequence.1) No data after landing- Toggle Airplane Mode for 10 seconds.- Ensure Mobile Data is set to the eSIM line.- Turn Data Roaming ON for the eSIM line only.- Manually select a network (Settings > Network Operators).2) APN issues- Check your plan email for APN details and enter them in the eSIM’s Access Point Name field.3) iMessage/FaceTime not activating- Temporarily set the eSIM line as your default for both data and iMessage activation; wait a few minutes, then switch defaults back.4) Can’t receive bank OTPs- Confirm the home SIM has signal.- Turn off Do Not Disturb/Focus.- Ask your bank to resend as SMS, not voice call.- If your home SIM is out of balance for inbound SMS, top it up.5) Battery drain- Disable Background App Refresh on cellular for heavy apps.- Use Low Power Mode and Low Data Mode.6) Hotspot not working- Check the plan allows tethering; if allowed, set the eSIM line as the data source, then enable Personal Hotspot.Use-case snapshots by regionUnited States semesters: Choose Esim United States for campus life, with Esim North America if you’ll visit Canada or Mexico on breaks. Data usage is higher stateside—size up your plan if you rely less on campus Wi‑Fi.France, Italy, Spain: City campuses mean strong public Wi‑Fi, so 15–20 GB often suffices. Country-specific plans like Esim France, Esim Italy or Esim Spain are cost‑effective if you mostly stay put.Wider European travel: Weekend trips across borders? Pick Esim Western Europe to avoid switching plans at every border.Mixed continent exchange: Starting in the US then heading to Europe? Combine a month of Esim United States with a follow‑on Esim Western Europe.FAQ: eSIM for students1) Should I buy my eSIM before or after I fly?Buy before you fly if you can. Install over home Wi‑Fi and activate data on arrival. If you forget, airport Wi‑Fi is usually fine for purchase and installation.2) Can I keep my WhatsApp number while using a data-only eSIM?Yes. WhatsApp remains tied to your existing number. Use the eSIM for data and do not change your WhatsApp number unless you want to migrate permanently.3) How do I receive bank OTPs abroad?Keep your home SIM active for calls/SMS with Data Roaming OFF. Your phone will still receive SMS on that line. Where possible, enable app-based authentication as a backup before travel.4) How much data do students typically need per month?Most students manage on 15–25 GB with regular Wi‑Fi. If you stream a lot on the go or hotspot a laptop, consider 30–40 GB.5) Can I hotspot from an eSIM?Often yes, but it depends on the plan. Check your plan details. If allowed, set the eSIM as the active data line and enable Personal Hotspot.6) My phone is locked to my home carrier. Can I still use an eSIM?No. You’ll need an unlocked device to use a third‑party eSIM. Ask your carrier about unlocking before you travel.Next step: Browse your study destination and pick a plan on Destinations. Install at home, land connected, and keep your home number live for OTPs and WhatsApp.

30 Oct 2025