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

Blog

VoLTE & Wi‑Fi Calling Abroad: Make Cal...

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

30 Oct 2025

Networks

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.

Read more blogs

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

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
eSIM for USA Travel (Tourists): Best Options & Setup

eSIM for USA Travel (Tourists): Best Options & Setup

Planning a trip to the United States and want reliable data without hunting for a SIM at the airport or paying roaming fees? An eSIM is the fastest, simplest way to get connected as soon as you land. This guide explains the best eSIM options for USA travel, how to choose the right plan, network coverage realities (city vs national parks), and exactly how to set it up on iPhone and Android. Whether you’re in New York for a long weekend, driving the Pacific Coast Highway, or working remotely across time zones, you’ll find practical advice for smooth connectivity. We’ll also cover whether you need a US number, how much data you really need, and what to do if things don’t connect first time. If you’re comparing plans now, jump straight to our USA range on Esim United States, or browse every country on Destinations.Why use an eSIM for USA travel?Instant setup over Wi‑Fi—no physical SIM swap.Keep your home number active for calls/2FA via dual SIM.Avoid unpredictable roaming charges; pay a clear, local data rate.Flexible: 7/15/30‑day options, top‑ups, and multi‑country packs.Works on modern iPhones, Google Pixel, and many Samsung models.Pro tip: Install your eSIM profile before you fly (on Wi‑Fi), then activate data on arrival so your plan window starts when you actually need it.Quick picks: best eSIM options for USA tripsUse these scenarios to narrow your choice. Then compare plans on Esim United States.Best for short city breaks (3–7 days)Choose a 3–5 GB or 10 GB plan with 5G access.Prioritise strong urban coverage (T‑Mobile and AT&T are typically excellent in cities).Check if hotspot/tethering is included for sharing data to a laptop.Best for road trips and national parksPick a plan that supports both AT&T and T‑Mobile where possible, or one known for broad nationwide coverage.Expect patchy service in remote areas (e.g., parts of Yosemite, Yellowstone, deserts). Download offline maps ahead of time.A 15–30 GB plan is sensible for navigation, music, and occasional video.Best for heavy data users and hotspotLook for “unlimited” plans with clear Fair Use Policies (FUP). Many cap high‑speed data per day (e.g., 2–5 GB) before throttling.If you hotspot regularly, confirm hotspot allowance; not all “unlimited” plans allow tethering at full speed.Best if you need a US numberMost travel eSIMs are data‑only. If you need a local number (for reservations, ride‑hailing verification), choose a plan that explicitly includes voice/SMS.Alternatively, use your home number over Wi‑Fi Calling, or use apps like WhatsApp/Telegram for messaging.Best for multi‑country tripsFor Canada+USA+Mexico, consider a regional option on Esim North America.Continuing to Europe after the USA? A regional pack on Esim Western Europe simplifies cross‑border travel. You can also pick specific countries like Esim France, Esim Italy, or Esim Spain if your route is fixed.Coverage and performance in the US: what to expectNetworks: The “Big 3” are AT&T, T‑Mobile, and Verizon. Most travel eSIMs use AT&T and/or T‑Mobile. Some plans can switch networks automatically based on signal.Cities and suburbs: 5G is widespread, with excellent performance from AT&T and T‑Mobile.Rural and national parks: Coverage varies. Verizon is often strongest in remote zones, but many travel eSIMs won’t use Verizon. Don’t rely on continuous data during long stretches in the mountains or deserts.Speed management: Many eSIM plans are subject to “deprioritisation” at busy times, meaning locals may get priority in congested cells. This is normal and short‑lived.Hotspot: Allowed on many plans, sometimes with limits. Check the plan’s hotspot policy before purchase.Pro tip: If your eSIM supports manual network selection, try switching between AT&T and T‑Mobile in rural areas to find a workable signal.How to set up your USA eSIM (step‑by‑step)You’ll receive either a QR code or a manual activation code after purchase. Install on Wi‑Fi.Before you fly (checklist)Confirm your phone supports eSIM and is carrier‑unlocked.Buy your plan and keep the QR/manual code handy.Install the eSIM profile on Wi‑Fi, but do not enable mobile data until landing if your plan starts on first connection.Download offline maps for your route/parks.Turn on Wi‑Fi Calling on your primary line if you plan to use your home number over data.iPhone (iOS 17/18)Settings > Mobile Service (or Cellular) > Add eSIM.Scan the QR code or choose “Use Activation Code” and paste the code.Label it “USA eSIM”.Set Default Line: keep your primary for calls/SMS if you like; set USA eSIM as “Mobile Data”.Under Mobile Data, toggle “Allow Mobile Data Switching” off if you want to force data via the USA eSIM only.On landing, enable the USA eSIM line and Mobile Data. Ensure Data Roaming is on for the eSIM line.Android (Pixel/Samsung)Settings > Network & Internet > SIMs (names vary).Add eSIM > Scan QR or “Enter code manually”.Name it “USA eSIM”.Set “Mobile data” to USA eSIM; keep your primary SIM for calls if needed.Enable Data Roaming for the eSIM line on arrival.On arrival: connect cleanlyTurn off data roaming on your home SIM to avoid accidental roaming.Turn on only the USA eSIM for data.If no data, toggle Airplane mode for 10 seconds, then back on. Try a manual network scan.Troubleshooting quick fixesAPN: Some plans require a custom APN. Check your plan instructions and add the APN under Mobile Network settings.5G not available: Switch to 4G/LTE; some areas are LTE‑only or 5G is restricted on roaming profiles.No service: Manually select AT&T or T‑Mobile. Reboot if needed.Still stuck: Reinstall the eSIM profile only if advised by support. Contact support via chat/email (note time zones).How much data do you need?Light user (messaging, maps, email): 3–5 GB/week.Typical city tourist (socials, ride‑hailing, light video): 5–10 GB/week.Road‑tripper (navigation, streaming music, photos backup): 10–20 GB for 2 weeks.Remote worker (video calls, hotspot): 20–40 GB/month or an unlimited plan with clear FUP.Pro tip: Autoplay on socials and cloud photo backups burn data. Disable video autoplay and set photos to “Wi‑Fi only” backup to stretch your allowance.Cost and plan features to compareWhen comparing eSIM USA travel plans, look beyond data size.Validity and start rules: Does the plan start on first connection or date of purchase?Network access: AT&T, T‑Mobile, or both; 5G access included?Fair Use Policy: Daily high‑speed caps on “unlimited”; throttled speeds after cap?Hotspot/tethering: Allowed, and at what speeds?Top‑ups: Can you add more data without reinstalling a new eSIM?Support hours: Live chat/email availability in your travel time zone.Refund policy: Refund if you haven’t activated and there’s a compatibility issue.Number: Data‑only vs plans including a US number (voice/SMS).Device limits: Some plans restrict installation to one device; eSIMs can’t be “moved” once installed.Compare current options on Esim United States, or explore regional bundles on Esim North America.Planning multi‑stop trips?If you’re visiting multiple countries, regional eSIMs reduce admin and avoid mid‑trip SIM swaps.North America loop (USA, Canada, Mexico): choose Esim North America.Transatlantic holiday: pair your US plan with Esim Western Europe for onward travel.City‑hopping in Europe: individual country packs like Esim France, Esim Italy, and Esim Spain often deliver higher data per country at sharper pricing.Browse every country and region on Destinations.Business and group travellersBusiness teams: Centralise spend and manage multiple lines with pooled data and consolidated billing. See For Business.Tour leaders and creators: If you’re provisioning connectivity for clients or audiences, explore revenue‑share and co‑branding via our Partner Hub.At a glance: USA eSIM options (product snapshot)What we like - Fast, self‑serve activation and immediate connectivity on landing. - Competitive 5G data packs with clear validity. - Options for both city breaks and long road trips; some plans support multi‑network access.Considerations - Data‑only plans won’t give you a US phone number; pick a voice‑enabled plan if needed. - Rural coverage is inherently variable; download offline maps and expect dead zones in parks. - “Unlimited” usually has a daily high‑speed cap—check each plan’s FUP.Compare and buy on Esim United States.FAQs1) Will my phone work with a USA eSIM? - iPhone XR/XS and newer support eSIM; US iPhone 14/15 models are eSIM‑only. Most Google Pixel 4+ and Samsung Galaxy S20/S21/S22/S23/S24 variants support eSIM. Your device must be carrier‑unlocked. Check your exact model’s eSIM support before purchase.2) Do I get a US phone number with an eSIM? - Many travel eSIMs are data‑only, so no local number. If you need one, choose a plan that explicitly includes voice/SMS, or use your home number via Wi‑Fi Calling. Apps such as WhatsApp/iMessage work over data without a US number.3) When should I activate my plan? - Install the eSIM profile on Wi‑Fi before you fly. If your plan starts on first network connection, enable mobile data only once you land in the USA.4) Will it work in national parks and rural areas? - Coverage can be limited. AT&T and T‑Mobile are strong across most highways and towns, but expect dead zones in mountains, canyons, and deserts. Download offline maps and don’t rely on constant connectivity.5) Can I keep my WhatsApp and iMessage? - Yes. These apps tie to your existing number/account and will continue working over the eSIM’s data. Keep your primary SIM active (with data roaming off) to receive calls/SMS if needed.6) Is tethering allowed? - Often yes, but it’s plan‑specific. Some “unlimited” offers limit hotspot speeds or daily high‑speed amounts. Check the plan details before purchase.The bottom lineFor most travellers, an eSIM is the most convenient and cost‑effective way to stay connected in the USA. Choose your plan based on trip length, expected data use, and where you’ll be—cities vs road‑tripping through parks. Install before you fly, activate on landing, and keep your home number for calls and 2FA via dual SIM.Next step: Compare plans and get connected in minutes on Esim United States.

31 Oct 2025
Co‑Marketing Toolkit: Landing Pages, Ad Copy, and UTM Attribution

Co‑Marketing Toolkit: Landing Pages, Ad Copy, and UTM Attribution

If you’re a travel brand, OTA, fintech, airline, or publisher, this telecom co marketing toolkit is your practical blueprint for launching a joint eSIM campaign that travellers actually love. Below you’ll find clear templates for landing pages and ad copy, rock‑solid UTM conventions for clean attribution, and the creative specs to brief your team or agency without back‑and‑forth. We’ve also added real snapshots from partner launches, plus a downloadable asset pack so you can go live fast.Because travellers come first, everything here is designed to remove friction from discovery to activation. That means localised offers (think Esim United States, Esim France, and regional bundles like Esim Western Europe), transparent pricing, and copy that answers the questions passengers actually ask in‑journey. Use this as your baseline, adapt to your brand, and keep tracking clean so your team can see what’s working from day one. When you’re ready to scale, explore Simology’s partner solutions via For Business and the resources on our Partner Hub.What this toolkit coversLanding page structure and traveller‑first messagingAd copy templates for Search, Social, and CRMUTM taxonomy and tracking hygiene (with setup steps)Creative specs and file guidanceCase snapshots and resultsAsset pack download and launch timelineBuild a traveller‑first landing pageA strong landing page does three things: reassures, simplifies, and converts. It’s not a brochure; it’s a decision aid. Start with a single, focussed conversion goal (buy, activate, or learn how eSIM works), and avoid sending travellers elsewhere until they’ve taken that action.Essential sections (checklist)Above‑the‑fold value prop: “Travel data that works on arrival — no SIM swap.”Primary CTA: “Get an eSIM” or “Choose your destination.” Secondary “How it works.”Social proof: ratings, partner trust marks, concise testimonials.Country/region picker with best‑selling packs (e.g., Esim Spain, Esim Italy, Esim North America).3‑step “How it works” with icons: Buy → Scan QR → Connect on landing.Clear inclusions: data allowance, validity, tethering, coverage, top‑up.Price clarity: local currency where relevant, taxes/fees if applicable.Compatibility check: iOS/Android models and dual‑SIM note.Support and refunds policy summary; link to full help.FAQ drop‑downs (top 5 only to keep it scannable).Pro tip: Embed a destination smart search tied to our catalogue so travellers can jump straight to Destinations.Traveller‑first template blocks you can copyHeadline options: - “eSIM for effortless travel data — no queues, no plastic.” - “Land connected in the USA/Europe — install your eSIM before you fly.”Lead paragraph: - “Skip airport SIM stalls. Buy your eSIM in minutes, install via QR, and connect instantly on arrival. Keep your usual number active for calls while using local data.”Feature bullets: - “Fast 4G/5G where available” - “Keep your SIM — no swap needed” - “Works in X countries” (adapt per plan) - “Hotspot/tethering supported” - “Secure checkout, instant delivery”Plan grid microcopy: - “Good for maps and messaging (3–5 days city break)” - “Great for streaming and hotspots (10–14 days+)”Destinations module: - “Popular now: Esim United States, Esim France, Esim Western Europe”UX patterns that boost conversionKeep plan cards consistent: allowance, validity, price, CTA in the same order.Add sticky CTA on mobile.Use device‑aware badges: “Works on your iPhone 13” where possible.Offer a “First time using eSIM?” link to a simple explainer rather than a long tech page.Ad copy templates that convertYour job: speak to the trip and the pain you remove (roaming shock, airport queues, public Wi‑Fi). Keep claims verifiable and concrete.Paid Search templatesGeneric: - H1: “eSIM for Travel — Instant Setup” - H2: “No Roaming Fees | Keep Your Number” - Desc: “Install before you fly. Fast 4G/5G on arrival. Plans for Destinations.”Destination‑specific: - H1: “USA eSIM — Connect on Landing” - H2: “Local Data | No SIM Swap” - Desc: “Buy online, scan QR, you’re live in minutes. See plans: Esim United States.”Regional: - H1: “Europe eSIM — One Pack, Many Countries” - H2: “Holiday & Business Travel” - Desc: “Use across top hubs. Explore Esim Western Europe.”Brand+Partner: - H1: “[Your Brand] x Simology eSIM” - H2: “Exclusive Offer for Travellers” - Desc: “Data plans for US, Europe and more. Start here.”Social and Display templatesShort primary text: - “Land connected. eSIM delivered instantly.” - “No queues. No roaming bill shock. Just data that works.”Body copy: - “Choose your destination, buy in minutes, scan the QR, and you’re online on arrival. Popular: Esim Spain, Esim Italy.”CTAs: - “Get eSIM” - “View Plans” - “Install Before You Fly”Subject lines (CRM): - “Install your eSIM before you fly” - “Avoid roaming fees on your trip to France” - “One eSIM for your US itinerary”Pro tips: - Mirror keywords from your landing page H1 for Quality Score alignment. - Use location and trip type: “city break”, “road trip”, “business week”. - Always A/B one message that educates (what is eSIM?) vs. one that assumes awareness.UTM attribution and tracking hygieneClean data wins budget. Use one UTM taxonomy across all channels and partners so your analytics platform tells a single story.Standard taxonomy (recommended)utm_source: partner or platformExample: “google”, “facebook”, “ota‑brand”utm_medium: channel“cpc”, “display”, “email”, “affiliate”utm_campaign: offer context“esim‑usa‑2025q1”, “esim‑western‑europe‑summer”utm_content: creative or placement variant“vid‑15s‑stories”, “img‑1080‑citybreak”, “lp‑variant‑a”utm_term: paid search keyword (where relevant)Naming rules: - Lowercase only, hyphens as separators, no spaces, no PII. - Keep to < 50 characters where possible. - Include date or season if you’ll revisit later.Set‑up steps (How‑To)1) Create a shared UTM guide - One page listing approved values and examples. - Store it alongside briefs on your internal drive or the Partner Hub.2) Build links with checks - Use a sheet with data validation or your BI tool’s URL builder. - Force required fields; block free‑text where possible.3) Map to analytics - In GA4, define channel groupings aligned to utm_medium. - Create campaign naming rules to auto‑group reports.4) QA before launch - Test each ad link in a clean browser session. - Confirm UTMs persist through any redirects. - Validate final landing URLs resolve correctly.5) Monitor and tidy - Weekly: flag off‑taxonomy values and correct them at source. - Archive ended campaigns to preserve CTR/CVR baselines.QA checklist: - Are all links HTTPS and canonicalised? - Are UTMs present on all paid links and CRM CTAs? - Is there a single default landing page per campaign? - Does your order confirmation page pass source/medium to revenue?Pro tip: If you’re driving to multiple country pages (e.g., Esim France and Esim North America), keep campaign consistent and vary utm_content to identify which destination module was clicked.Creative specs and file guidanceBrief clearly to avoid rework and keep load times fast.Static image (Social/Display)1080×1080, 1080×1350, 1200×628PNG/JPG, ≤ 500 KB (aim for 200–300 KB)Safe‑area for text: < 20% coverage for readabilityVertical video (Stories/Reels/TikTok)1080×1920, 9:16, 15–30 sMP4/H.264, ≤ 15 MB where possibleHook in first 2 seconds; show install flowHorizontal video (YouTube/Pre‑roll)1920×1080, 16:9, 15 or 30 sInclude brand bumper in first/last 1.5 sHTML5 display300×250, 728×90, 160×600, 300×600, 320×50Under 150 KB per creativeLanding page assetsHero image < 200 KB; lazy‑load non‑critical imagesSVG for logos/icons; system fonts or preloaded web fontsCopy guardrails: - Avoid vague superlatives; favour concrete benefits (e.g., “Install before you fly”). - Localise price and spelling (US vs UK English when relevant). - Make inclusions/exclusions explicit near the CTA.Case snapshotsAirline pre‑departure emailAudience: USA‑bound leisure travellersTactic: “Add eSIM before you fly” segment + Esim United States landingResult: +31% CTR vs generic roaming tips; 22% of clicks installed within 24 hoursOTA booking confirmation pageAudience: Weekend city‑breakersTactic: Inline module featuring Esim Spain and Esim ItalyResult: CVR uplift from 2.4% to 4.1% with localised imagery and pricesFintech travel card appAudience: Multi‑country travellersTactic: In‑app banner to Esim Western EuropeResult: 18% attach rate when shown post‑FX notificationPublisher travel guideAudience: France itinerary researchersTactic: Content block linking to Esim France with step‑by‑step installResult: Average time on page +42%; strong assisted conversionsLaunch in one week: a simple planDay 1: Scope and assign - Choose priority destinations via Destinations and set one goal (sales or installs). - Confirm analytics owner and paid media owner.Day 2: Landing page build - Implement the template blocks above; add country modules. - Set up events and test UTMs.Day 3: Creative and copy - Produce two image variants and one 15 s vertical video per destination. - Draft search, social, and CRM copy using templates.Day 4: Tracking and QA - Finalise UTM list, build links, and run full link tests. - Check mobile speed (aim < 2.5 s LCP).Day 5: Soft launch - Launch in one market (e.g., Esim North America) with 50% budget. - Monitor CTR, CVR, CPI; fix any leaks.Day 6–7: Scale and optimise - Roll out to additional pages (e.g., Esim United States, Esim France). - A/B headline and hero; shift spend to best‑performing placements.Download the co‑marketing asset packTo make this painless, grab the partner asset pack on our Partner Hub. It includes: - Editable landing page blocks (copy + wireframe) - Ad copy bank for Search, Social, CRM - UTM builder spreadsheet with validation - Brand guidelines, logos, and icon set - Creative spec checklist and QA worksheetIf you’re weighing a broader programme, see options on For Business.FAQ1) What’s the fastest way to go live? - Start with one destination page (e.g., Esim United States), one search campaign, and one social placement. Use the UTM sheet to keep tracking clean, then scale.2) Should we drive to a regional or country page? - If the itinerary is fixed, use country pages like Esim France. For multi‑stop trips, regional pages such as Esim Western Europe convert well.3) How do we explain eSIM to first‑timers without hurting conversion? - Keep it to three steps above the fold and put deeper guidance behind an expandable “How it works.” Avoid technical jargon on the primary path.4) How many ad variants should we run at launch? - Two image variants, one short video, and two copy angles per channel is enough to find a winner without spreading budget too thin.5) What metrics matter most in week one? - Landing page CVR, cost per install (or sale), and bounce rate by device. Use UTMs to break down performance by creative and destination.6) Can we cross‑sell during or after purchase? - Yes. In confirmation pages or post‑purchase emails, promote add‑ons like regional upgrades (e.g., Esim North America) or destination alternatives via Destinations.Next step: Download the asset pack and start your build on the Partner Hub.

31 Oct 2025