Second Number for Travel: Virtual Number vs Local SIM vs eSIM

Choosing a second number for travel is a standard task for international trips, remote work, and managing incoming business communications across borders. When traveling abroad, staying connected requires deciding how to route voice calls, receive messages, and access mobile data. Travelers generally choose between three primary options: purchasing a physical local SIM card upon arrival, activating a virtual number over cloud infrastructure, or installing a digital travel eSIM directly on their mobile device.

Each option serves specific tasks. A local physical SIM provides mobile data and local voice connectivity tied to a single country's network, but requires swapping physical chips and visiting local stores. A virtual phone number enables receiving voice calls and messages over an internet connection without requiring a physical SIM slot or hardware installation. A travel eSIM provides digital mobile data roaming across single or multiple countries directly through embedded smartphone chips.

Understanding how these three options compare helps identify which combination satisfies your travel requirements, voice call needs, and mobile internet access.

To select the right setup, you must evaluate how each option handles voice connectivity, mobile internet data, physical hardware management, and country coverage.

A local physical SIM is purchased from a mobile network operator or retail shop upon entering a destination country.

• Hardware requirements: Requires a physical SIM card tray in your smartphone. If your phone only has one physical SIM tray, you must remove your primary home SIM card, leaving your main carrier phone number unreachable for incoming calls and texts during your trip.
• Data and calls: Provides local mobile internet data and a local phone number from the regional operator.
• Acquisition process: Involves finding a airport kiosk or local retail store, queuing, showing passport documentation for registration, and manually changing plastic cards.
• Scope: Restricted to the specific destination country's geographic boundary. Moving to another country requires buying another local SIM.

A cloud-based virtual phone number allows you to send and receive calls over an internet connection (Wi-Fi or mobile data) using a mobile application or web softphone.

• Hardware requirements: No physical card or SIM slot needed. It operates inside software on iOS and Android devices.
• Data and calls: Virtual numbers process incoming and outgoing voice calls over IP networks. They do not provide mobile internet data (GB) on their own; they rely on an existing Wi-Fi or mobile data connection.
• SMS capabilities: Selected virtual numbers support receiving SMS messages. To check if SMS reception is available for a given location, check SMS availability on the country page before purchasing. Note that SMS delivery from specific automated platforms depends on the local operator network and is not guaranteed.
• Acquisition process: Purchased online or directly inside a mobile app. Connection happens immediately without physical delivery or store visits.
• Scope: Works globally wherever your smartphone has an active internet connection.

An eSIM (embedded SIM) is a programmable digital SIM chip built directly into modern smartphone hardware.

• Hardware requirements: Requires an eSIM-compatible, carrier-unlocked smartphone (such as compatible iPhone, Google Pixel, or Samsung Galaxy devices). No plastic card is involved.
• Data and calls: Travel eSIMs provide mobile data plans (measured in GB) across specific countries or regional zones.
• Acquisition process: Purchased online or via a mobile app. Installed by scanning a QR code or completing manual configuration in system settings. Network activation completes in 5 to 10 minutes.
• Multi-profile capacity: Modern smartphones allow storing multiple digital SIM profiles simultaneously. For example, you can keep more than 5 eSIM profiles loaded on your phone and switch data lines as you cross borders.

The table below summarizes the technical and operational differences between local SIM cards, virtual numbers, and travel eSIMs.

The OnePhone app is OneVOIPlanet's mobile application for iOS and Android, designed as a cloud PBX in your smartphone combined with travel eSIM store capabilities. It unifies cloud voice communications and digital travel internet access within a single interface.

Inside the OnePhone application, users can:

• Browse, purchase, and install travel eSIM data packages for 200+ countries and regions.
• Purchase and manage cloud virtual phone numbers from a global catalog covering 93 countries.
• Access the My eSIM section to monitor active internet balances, data usage metrics, validity periods, and perform balance top-ups.
• Manage incoming and outgoing voice calls directly from your mobile device using virtual numbers without extra physical hardware.

All operations—from buying data plans to setting up cloud phone lines—take place directly within the application on iOS or Android.

Setting up internet access and a virtual phone line in the OnePhone application involves a few straightforward steps.

Before purchasing a travel eSIM, verify that your mobile phone is unlocked and supports eSIM technology:

• iOS (iPhone): Go to Settings > General > About. Ensure Carrier Lock shows "No SIM restrictions". Alternatively, go to Settings > Mobile Service and check for the Add eSIM option.
• Android (Pixel, Samsung Galaxy, and other supported models): Go to Settings > Connections > SIM Manager and check for Add eSIM.

1. Download and install the application on your iOS or Android device.
2. Open the application and choose your required service (travel eSIM for mobile data or virtual numbers for phone lines).
3. Select your target country or region and choose the plan duration and data volume (GB) or phone line option.
4. Complete payment. Accepted payment methods inside the app include credit or debit card, Apple Pay, and Google Pay.

1. Navigate to the installation instructions provided inside the app under Help > eSIM Connection.
2. Install the eSIM using the provided QR code or complete manual installation in your phone's system settings.
3. Activate the travel eSIM prior to your trip or upon arrival at your destination.
4. Connection to the regional mobile network completes within 5 to 10 minutes.
5. Track your data consumption, remaining validity, and balance directly in the My eSIM tab. You can keep more than 5 eSIMs stored on your phone simultaneously and top up balances inside the app at any time.

1. Open the virtual numbers catalog inside the application.
2. Select from the 93 available countries.
3. If you need SMS capabilities, check SMS availability on the country page (/en/nomery/).
4. Connect the virtual number to start making and receiving voice calls over Wi-Fi or mobile data.

If you encounter technical questions during installation or usage, 24/7 chat support is available directly inside the app.

OneVOIPlanet offers transparent pricing for travel eSIM data plans and virtual numbers.

Travel eSIM data packages start from $2.99 globally across 206+ countries. Starting rates for popular destinations include:

• United States: from $4.99
• Spain: from $3.99
• Turkey: from $3.99
• Canada: from $5.99
• France: from $3.99
• Japan: from $9.99
• United Arab Emirates (UAE): from $3.99
• China: from $4.99
• Thailand: from $5.99
• Ukraine: eSIM Ukraine options include lifecell and Vodafone with direct operator plans.

Virtual phone numbers cover 93 countries, with pricing starting from $5.99 per month. Monthly rates for selected destination numbers available in the OnePhone app include:

• United States: $5.99
• Ukraine: $7.99
• Australia: $8.99
• Belgium: $8.99
• Lithuania: $8.99
• Canada: $9.99
• Germany: $9.99
• Greece: $9.99
• Netherlands: $9.99
• Norway: $9.99
• Slovakia: $9.99
• Sweden: $9.99

Combining a travel eSIM with a virtual phone line inside a single smartphone application is suited for several types of users:

• International business travelers: Professionals who need to maintain an active home or regional phone number for client calls while accessing affordable mobile internet data in destination countries.
• Remote workers and digital nomads: Freelancers and remote teams who travel across multiple countries and require reliable internet connectivity alongside consistent voice numbers without paying international carrier roaming fees.
• Frequent vacationers: Travelers visiting one or more countries who want to avoid long queues at local SIM retail stores and eliminate physical SIM tray swaps.
• Businesses managing international clients: Companies that use virtual numbers to establish local presence in 93 countries while team members travel or operate remotely.