Tag: voip app

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What is the Best VoIP App for eSIM?

International traveler using OneSim VoIP app to stay in touch

International traveler using OneSim VoIP app to stay in touch

Why Travelers and Global Professionals Use VoIP Apps

International travel has changed dramatically over the last decade. Travelers now expect reliable data, affordable connectivity, and the ability to stay reachable anywhere in the world without dealing with expensive roaming charges or juggling multiple local phone numbers. While eSIMs and international SIM cards solve much of the connectivity problem, voice communication still creates challenges for many travelers.

That is where the OneSim VoIP App becomes an important part of the travel toolkit.

The OneSim VoIP App allows users to make and receive calls and messages using internet connectivity instead of relying entirely on traditional cellular voice networks. Whether connected through WiFi, hotel internet, airport hotspots, or mobile data from a OneSimCard eSIM or SIM card, the app helps travelers maintain affordable global communication almost anywhere.

Avoid Expensive International Roaming

Traditional carrier roaming rates can become surprisingly expensive, especially for voice calls. Even short international conversations may generate significant charges when using a home carrier abroad.

The OneSim VoIP App helps reduce those costs by routing calls over an internet connection. Instead of paying international roaming voice rates, users can often place calls at much lower costs while keeping communication simple and familiar.

For frequent travelers, digital nomads, remote workers, and international business teams, this creates a far more predictable and affordable communication experience.

Stay Reachable Worldwide

One major advantage of the OneSim VoIP App is flexibility. Travelers are no longer dependent on finding a local SIM card in every country they visit.

A traveler using a OneSimCard DataMax eSIM can land in a new country, activate data instantly, and continue using the VoIP App for communication without interruption. This is especially valuable for multi-country trips where changing SIM cards repeatedly becomes frustrating and time consuming.

The app works well for:

  • International travelers
  • Business travelers
  • Students studying abroad
  • Cruise passengers
  • Remote workers
  • Global sales teams
  • Expats and long-term travelers

Instead of constantly notifying friends, family, or clients about temporary foreign numbers, users can maintain consistent communication channels while traveling internationally.

How OneSim VoIP Compares to Other VoIP Apps

Many travelers already use apps such as WhatsApp, Skype, Telegram, or Viber for communication. While those apps are useful, they often work best only when both parties have the same application installed.

The OneSim VoIP App offers an important advantage for travelers because users can call standard landline and mobile phone numbers worldwide. This means you can contact:

  • Hotels
  • Airlines
  • Restaurants
  • Taxi drivers
  • Clients
  • Family members
  • Banks and customer support centers

…without requiring the other person to download or install a specific app.

That difference becomes extremely important while traveling internationally. If your hotel in Tokyo, your driver in Rome, or your tour operator in Bangkok only has a regular phone number, app-to-app messaging services may not help much. The OneSim VoIP App behaves more like a traditional phone service layered on top of internet connectivity.

Compared to Voice + SMS eSIM Providers

Some modern travel eSIM providers now advertise “voice and SMS included” plans. While convenient in some situations, these offerings often come with limitations:

  • Temporary local phone numbers
  • Country-specific restrictions
  • Limited roaming regions
  • Higher package costs
  • Voice minutes that expire quickly
  • Separate plans required for different regions

Using a global data eSIM together with the OneSim VoIP App creates a more flexible setup. Instead of depending on region-specific voice plans, travelers can use reliable data connectivity almost anywhere and place calls through the app when needed.

This approach is especially useful for travelers visiting multiple countries during one trip because they do not need to repeatedly change voice plans or manage multiple temporary numbers.

Perfect Companion for eSIM Travel

Modern travelers increasingly rely on eSIM technology because it eliminates the need for physical SIM swaps. Pairing a global eSIM with the OneSim VoIP App creates a powerful travel communication setup.

Using mobile data through an international eSIM while routing voice communication through VoIP gives travelers:

  • Lower communication costs
  • Fast activation
  • Multi-country coverage
  • Greater flexibility
  • Reduced roaming dependency
  • The ability to call real phone numbers worldwide

For many travelers, this combination replaces the need for expensive international roaming plans entirely.

A Smarter Way to Communicate Abroad

Global connectivity is no longer just about having internet access. Travelers also need reliable and affordable voice communication that works across borders.

The OneSim VoIP App helps bridge that gap by giving users a flexible communication solution that works alongside international eSIMs and SIM cards.

Whether traveling for business, adventure, or long-term international living, combining global data connectivity with internet-based voice communication creates a simpler and more cost-effective way to stay connected worldwide.

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Exploring the Timeless Charm of Vietnam: Top 10 Things to Do

Photo by Vo Thuy Tien

Introduction

Vietnam, a country that beautifully blends its rich history, stunning landscapes, and vibrant culture, has become an increasingly popular travel destination in recent years. With its diverse regions offering a plethora of experiences, Vietnam has something to offer every type of traveler. From bustling cities to serene countryside, from historical treasures to natural wonders, Vietnam promises an unforgettable journey. In this article, we’ll delve into the top 10 things to do when traveling to Vietnam, showcasing the nation’s unique allure.

1. Explore the Bustling Streets of Hanoi

Vietnam’s capital, Hanoi, is a mesmerizing blend of ancient traditions and modern influences. Start your journey by exploring the Old Quarter, where narrow streets are filled with local markets, street food vendors, and historic temples. Don’t forget to visit the Hoan Kiem Lake and Ngoc Son Temple, which are beautifully illuminated at night, creating a romantic atmosphere for an evening stroll.

2. Cruise Through the Halong Bay

A UNESCO World Heritage Site, Halong Bay is a natural wonder that will leave you awestruck. Embark on a cruise to explore its emerald waters, towering limestone karsts, and hidden caves. The bay’s ethereal beauty makes it a photographer’s dream, and you can choose from various cruise options, ranging from budget to luxury.

3. Get Lost in the Ancient Town of Hoi An

Hoi An, with its well-preserved architecture and lantern-lit streets, transports you back in time. This charming town boasts an array of tailor shops, making it a great place to get custom-made clothing. Explore its markets, dine on exquisite Vietnamese cuisine, and be sure to visit the historic Japanese Covered Bridge.

4. Immerse Yourself in the Cu Chi Tunnels

Venture into the historic Cu Chi Tunnels near Ho Chi Minh City (formerly known as Saigon). These underground tunnels served as a strategic base during the Vietnam War and offer a glimpse into the country’s wartime history. You can even crawl through a section of the tunnels to experience the cramped conditions faced by soldiers.

5. Marvel at the Temples of Angkor

Sunrise at Angkor Wot
Photo by Lukas Kloeppel

While not technically in Vietnam, the nearby Angkor Wat complex in Cambodia is an absolute must-visit for travelers exploring Southeast Asia. These stunning temples are a testament to the grandeur of the Khmer Empire and can be easily reached from Ho Chi Minh City via a short flight. Witness the sunrise at Angkor Wat and explore the intricately designed temples in the surrounding area.

6. Savor Vietnamese Cuisine

Vietnamese food is renowned worldwide for its fresh ingredients and bold flavors. From street food stalls to upscale restaurants, you’ll find an array of delicious dishes to try. Don’t miss out on iconic dishes like pho (noodle soup), banh mi (Vietnamese sandwich), and fresh spring rolls. Each region in Vietnam has its own unique culinary specialties, so be sure to explore the local cuisine wherever you go.

7. Trek Through the Sapa Terraces

For nature enthusiasts and adventure seekers, Sapa offers some of Vietnam’s most breathtaking scenery. Trek through terraced rice fields, mist-covered mountains, and traditional Hmong villages. The beauty of this region is unparalleled, and interacting with local ethnic minorities adds a cultural dimension to your journey.

8. Visit the Imperial City of Hue

Hue, located in central Vietnam, was once the imperial capital of the Nguyen Dynasty. Explore the UNESCO-listed Imperial City, a vast complex of palaces, temples, and gates. The Perfume River, which flows through Hue, offers picturesque boat rides and an opportunity to visit ancient pagodas.

9. Relax on Phu Quoc Island

For those seeking sun and sand, Phu Quoc Island is an idyllic destination. With its pristine beaches, lush jungles, and luxury resorts, it’s a perfect place to unwind. Explore the island’s fish sauce factories, pepper plantations, and vibrant night markets. Don’t forget to watch the mesmerizing sunset at Long Beach.

10. Learn About the War Remnants in Ho Chi Minh City

Gain a deeper understanding of Vietnam’s tumultuous history by visiting the War Remnants Museum in Ho Chi Minh City. This thought-provoking museum exhibits war artifacts, photographs, and stories that shed light on the country’s painful past. It’s a poignant reminder of the resilience and strength of the Vietnamese people.

Conclusion

Vietnam is a country of incredible diversity, offering travelers a wide range of experiences. From the bustling streets of Hanoi to the serene beauty of Halong Bay, from the historical richness of Hue to the culinary delights found across the nation, Vietnam is a destination that will captivate your heart and soul. So, pack your bags and embark on a journey to discover the timeless charm of this beautiful country. Vietnam welcomes you with open arms and a promise of unforgettable memories.

Also, don’t forget to download the OneSimCard Universal SIM card for your trip to Vietnam. With the Universal SIM card, you can get 3000MB of data for $39.00 for 30 days. You can also use our 1SIM VoIP app to make and receive calls while traveling. The 1SIM VoIP app allows you to call virtually any phone number in the world for less cost than traditional cellular voice. You can see our blog post about the comparison of traditional cellular voice roaming and 1SIM VoIP voice. We hope you enjoy the wonders of Vietnam!

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What’s the Best Choice: Cellular Voice vs VoIP When Traveling?

Image of the OneSim VoIP app making an international call using VoIP when traveling
Using OneSim VoIP when traveling

Introduction to VoIP When Traveling

Voice over Internet Protocol (VoIP) has revolutionized the way we communicate, offering a cost-effective alternative to traditional cellular voice calls, especially while traveling. In an era where connectivity is essential, VoIP has emerged as a powerful tool for staying in touch without breaking the bank. Here, we explore the reasons why using VoIP is less expensive than cellular voice when traveling, delving into the economic advantages and technological advancements that make VoIP the smarter choice for globetrotters.

Cost Savings: A Primary Consideration

Traveling often means navigating different cellular networks and international roaming fees. Cellular voice calls can become exorbitant, with carriers charging substantial rates for international usage. VoIP, on the other hand, utilizes the internet to transmit voice data, bypassing traditional phone networks and their associated fees. Services like Skype, WhatsApp, and Zoom allow users to make voice calls for free or at significantly reduced rates compared to cellular providers. Cellular providers range wildly depending on the country and provider. We see costs range from $0.30USD to over $2.00 per minute for cellular voice, but a minute of voice is typically less than 1MB and we see international roaming rates under $0.01/MB for data. This upfront cost savings is a compelling reason for travelers to opt for VoIP.

Global Connectivity Without Borders

VoIP operates over the internet, making it a borderless communication solution. Unlike cellular voice, which requires compatible networks and roaming agreements, VoIP connects users seamlessly regardless of their geographical location. This feature is especially beneficial for travelers, as they can maintain communication with friends, family, and colleagues without having to worry about international restrictions or network compatibility. Whether on a business trip or a leisurely vacation, VoIP ensures uninterrupted connectivity at a fraction of the cost.

Wi-Fi Dominance

Modern travel destinations, whether hotels, cafes, airports, or public spaces, invariably offer Wi-Fi connectivity. VoIP leverages these ubiquitous Wi-Fi networks to establish voice connections. Travelers can take advantage of free or low-cost Wi-Fi options to make VoIP calls, eliminating the need for expensive cellular voice plans. This symbiotic relationship between VoIP and Wi-Fi amplifies the cost-saving benefits, allowing users to communicate conveniently without the burden of extra charges.

Inclusive Services

VoIP services frequently bundle features that further enhance their value proposition. Video calls, text messaging, and multimedia sharing are often included alongside voice calls. Such comprehensive services eliminate the need for separate applications and subscriptions, simplifying the communication process for travelers. In contrast, cellular voice calls typically offer limited additional functionalities at higher costs, making VoIP a more versatile and budget-friendly choice.

Advancements in VoIP Technology

The continual evolution of VoIP technology has solidified its position as a cost-effective alternative to cellular voice. High-speed internet connectivity has become more accessible and reliable worldwide, ensuring stable VoIP connections even in remote locations. The development of codecs and compression algorithms has optimized voice data transmission, reducing bandwidth requirements and enhancing call quality. These technological advancements contribute to VoIP’s cost-effectiveness by minimizing data consumption and maximizing the efficiency of voice communication.

Evolving Smartphone Apps

Smartphone apps have become integral to modern travel, offering navigation, translation, and currency conversion at the touch of a button. VoIP applications have seamlessly integrated into this ecosystem, enabling users to make calls directly from familiar platforms. As these apps continue to improve their user interfaces and functionalities, travelers find it increasingly convenient to use VoIP for their communication needs. The integration of VoIP with other essential travel apps further solidifies its cost-effective appeal.

Not All VoIP Apps Are Equal

OneSimCard developed the OneSim VoIP app for their customers to make VoIP when traveling even easier.  Our coverage, usability and rates are the main benefits of our VoIP app. Even if, by rare chance, you happen to find yourself in a place where our SIM card has no service, you can use Wi-Fi with our VoIP app with your Personal Extra Number (PEN).

Our VoIP app also doesn’t require the other person to have the same app. You can use the OneSim VoIP app to call any phone in the world. Unlike other VoIP apps like WhatsApp, Facetime, etc. the person you are calling, or getting a call from, is just any phone…no special apps needed.

Using the OneSim VoIP app is also very cost effective. Wherever you are in the world the cost to recieve a call is only 1¢/minute. Outgoing calls depend where you are calling to. USA and Canadian numbers, for example, are only 2¢ per minute to call. The best news is calling between OneSim VoIP users is absolutely FREE!!

Customization and Flexibility

VoIP services often provide customizable plans tailored to different user needs. Travelers can select pay-as-you-go options, prepaid plans, or subscription-based models, allowing them to choose the most suitable and cost-effective arrangement. This flexibility empowers travelers to manage their communication expenses efficiently, avoiding the unpredictability of cellular voice charges.

Security and Reliability

Security concerns associated with VoIP have significantly diminished as encryption and authentication technologies have matured. Many VoIP services now offer end-to-end encryption, ensuring the confidentiality of voice calls and data transmission. Moreover, the reliability of VoIP has improved over time, with enhanced call quality and fewer disruptions. Travelers can confidently rely on VoIP for important conversations, knowing that their communications are secure and dependable.

Conclusion

In the realm of modern communication, VoIP has emerged as a cost-effective alternative to cellular voice, particularly when traveling. The substantial cost savings, global connectivity, reliance on Wi-Fi, inclusive services, technological advancements, and evolving app ecosystems collectively position VoIP as the more affordable and practical choice for travelers. As the world becomes increasingly interconnected, embracing VoIP while on the move presents a compelling case for those seeking effective communication solutions without the burden of excessive expenses.

Planning a trip soon? OneSimCard offers both Physical SIMs and eSIMs for all of your needs when traveling internationally. We also have a custom VoIP app available for Android and iOS devices. The OneSim ViOP app, coupled with our Personal Extra Number (PEN) will let you stay in touch with family and friends regardless of where you travel. Our SIMs will also work with your favorite VoIP app, like WhatsApp, Facetime, FB Messenger, Telegram, etc., if you already have one.

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What is the Best Travel eSIM Card & Why?

Phone that includes eSIM.

We discussed eSIMs (embedded SIM cards) in a previous post. eSIMs aren’t all created equally, though. An “international eSIM card” is a bit of a misnomer. International / travel eSIMs are the of roaming SIMs as physical SIMs move into the past. The reason for the change is because device manufacturers save space on the device by replacing the physical SIM and it with eSIM technology. eSIMs are probably better called “SoftSIMs.” They are simply nothing more than a piece of software downloaded into devices enabled to understand this technology. What makes for the best travel eSIM then?

The world is becoming more and more data centric, so most eSIM providers only include data usage, They don’t bother to support voice or text. However, voice and text remain important for the international roaming SIM market. The growth of data centric applications like WhatsApp, Facetime, Telegram, Skype, etc. are changing the way providers deliver their services. You can communicate with friends and family, post messages and even place video calls with data only. This doesn’t work well for the international traveler, and is a major problem/flaw. It forces the international traveler to use another provider to place calls and send and receive SMS. This is because these roaming eSIMs don’t include a phone number. Without a phone number you can’t call your Uber driver, talk to your bank, call the restaurant that you are running late, etc.

This is where OneSimCard international eSIMs really stands out. Our international eSIMs support Data, Voice & Text messaging. Our SIMs include an EU based phone number and you can also choose alternate phone numbers (Personal Extra Numbers, or PENs). You can get in-country phone numbers in 70+ destinations with OneSimCard eSIMs.  You can set your alternate number as your caller ID so that your phone appears to be a local caller. What’s more is you can get a USA phone number that is a true mobile number. This USA mobile number allows you to receive 2FA verification messages required by banks, the IRS, and pretty much any other US company.

Usability is another important feature making an eSIM the best international eSIM.  eSIMs should be simple to install and have flexible plans. Flexibility is key as travel patterns. Meant for a single country, most eSIMs aren’t flexible because you can’t move between countries. OneSimCard eSIMs are designed to be used over and over for years, and in many different countries. Our plans are flexible; even in a single trip. We also offer 2 different eSIMs: our World eSIM for the greatest # of destinations, & our Asiania eSIM for use especially in Asia and Oceania.

The amount of support and applications available from the eSIM provider is the last factor for rating travel eSIM cards. OneSimCard is one of the only international eSIM providers with its own VOIP app (available in Google Play and Apple APP Store)for US and Canadian phone numbers to reduce the cost of Voice and Text services. OneSimCard also has eSIM apps in Apple App store and Google play. You can manage all aspects of your travel eSIM right in these apps. Multi-lingual customer service is also available by phone, email and online.  

You need to read the fine print and look at the reviews for eSIM service providers before you buy. There has been a rapid growth in this space, and COVID forced some closed. We have been in business for over 27 years, and have a 4.5 star rating with Shopper Approved with 2500+ reviews.

More information about our international roaming eSIM is available on our website: https://www.onesimcard.com/esim or simply scan this QR code. This page will help you further understand why the OneSimCard international eSIM for travel is the best option for your eSIM enabled phone when you are abroad. You can also reach out to us, and ask any questions that you may have. 

Wishing you safe travels!