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Last updated on July 12th, 2026 at 01:33 am
AI Summary: This article covers the top 11 VoIP providers in Vietnam for international calling, written for sales leaders, founders, and support heads evaluating cloud telephony options. According to the GSMA Mobile Economy Asia Pacific 2024 report, Vietnam’s internet penetration now exceeds 79%, making VoIP a practical default for business communication. Teams operating across borders need a provider that combines call quality, CRM integration, and transparent pricing. FreJun delivers AI-powered call automation starting at $14.49 per user per month, with direct integrations into HubSpot, Salesforce, Zoho, and Pipedrive.
If your team makes international calls from Vietnam, you already know the problem: traditional phone lines are expensive, call quality drops unpredictably, and there is no easy way to log activity into your CRM. Voice over Internet Protocol (VoIP) technology solves all three. Vietnam’s VoIP market has grown quickly, so the real challenge now is picking the right provider from a crowded field. This guide breaks down the top 11 VoIP providers in Vietnam, with pricing, features, and honest best-fit guidance for each one.
Quick Answer: The top 11 VoIP providers in Vietnam include FreJun, Viettel Telecom, FPT Telecom, VNPT-Vinaphone, Mobifone, Netnam, VNPT-Ca Mau, Vietnamobile, VTC Digicom, Indochina Telecom, and Hanoi Telecom. FreJun stands out for sales and support teams because it combines HD call quality with AI call logging, CRM integration, and virtual numbers starting at $14.49 per user per month.
The top 11 VoIP providers in Vietnam cover everything from AI-powered call automation for sales teams to regional carriers with broad domestic coverage, so the right choice depends on whether you need CRM integration, international reach, or local pricing.
What is VoIP and Why Does It Matter for Businesses in Vietnam?
VoIP (Voice over Internet Protocol) is a calling technology that routes voice calls over the internet rather than traditional phone lines. For businesses in Vietnam, it means lower international call costs, built-in call recording, and the ability to connect your phone system directly to your CRM.
FreJun takes under two minutes to set up. No credit card required, no lengthy onboarding call. Just connect your CRM and your team can start making calls right away.
What is a Good Way to Make Cost-Effective International Calls from Vietnam?
The most practical way to cut international calling costs from Vietnam is to use a VoIP platform that routes calls over the internet rather than the PSTN. FreJun is a strong choice here because it offers HD call quality, virtual numbers in multiple countries, and per-user pricing that scales with your team. Traditional mobile or landline international rates in Vietnam can run several times higher than VoIP rates for the same destinations.
Beyond cost, the bigger win for business teams is automation. When every call is automatically logged to your CRM, your reps stop wasting time on manual data entry, so they can focus on the next conversation instead.
“After working with over 500 sales teams across Asia, the pattern is clear: teams that switch from traditional calling to VoIP with CRM integration cut their average call-logging time by around 80% within the first month. The cost savings are real, but the time savings are what actually change how reps work day to day.”
— Subhash Kalluri, Co-Founder and CEO, FreJun
Top 11 VoIP Providers in Vietnam: Quick Recommendations
Before we go into each provider in detail, here is a fast-reference comparison table. Use it to shortlist two or three options, then read the full sections below to confirm your pick. For teams making frequent calls to Japan, the top VoIP providers in Japan for international calling covers the equivalent comparison for that market.
| Provider | Best For | Starting Price | G2 Rating | Key Differentiator |
|---|---|---|---|---|
| FreJun | Sales and support teams needing CRM integration | $14.49/user/mo | 4.9/5 | AI call logging, auto-dialer, CRM sync |
| Viettel Telecom | Businesses needing broad Vietnam coverage | ~60 VND/mo | N/A | 200+ country reach, local reliability |
| FPT Telecom | Enterprises wanting scalable HD voice | Multiple plans | N/A | 24/7 support, Wi-Fi and mobile data calling |
| VNPT-Vinaphone | Users needing conferencing and call recording | Multiple plans | N/A | Nationwide network, value-added services |
| Mobifone | Personal and SMB users | Contact for pricing | N/A | Mobile app with call forwarding |
| Netnam | Teams wanting call analytics | Multiple plans | N/A | Analytics, reporting, minimal downtime |
| VNPT-Ca Mau | Southern Vietnam regional businesses | Contact for pricing | N/A | 200+ country coverage, regional focus |
| Vietnamobile | Cost-conscious SMBs | ~25 VND/mo | N/A | Low entry price, easy account management |
| VTC Digicom | Businesses needing tool integrations | Contact for pricing | N/A | HD voice, scalable infrastructure |
| Indochina Telecom | Growing companies needing stable connectivity | Contact for pricing | N/A | Continuous network investment, broad country reach |
| Hanoi Telecom | Northern Vietnam businesses | Contact for pricing | N/A | Regional focus, advanced call management |
In the demo, you will see how FreJun auto-logs every call to your CRM, flags missed follow-ups, and shows which reps need coaching, all inside one dashboard. Most teams that book a demo are live within a week.
1. FreJun: Best VoIP Provider for Sales Teams in Vietnam
FreJun is an AI-powered VoIP platform built for sales and support teams that need more than just a dial tone. It combines HD voice calling, automatic CRM logging, call recording, and an auto-dialer into a single platform, so your team spends time talking to prospects rather than updating records.
We recommend FreJun over the other providers on this list for any team that uses a CRM. The direct integrations with HubSpot, Salesforce, Zoho, and Pipedrive mean every call is logged automatically, with a transcript and outcome tag attached. That data feeds directly into your pipeline, so managers can coach based on real call activity rather than guesswork.
FreJun Key Features
- HD voice calls with low-latency routing
- Transparent per-user pricing plans
- Mobile and desktop applications
- Call forwarding and IVR
- Voicemail to email
- Automatic call recording
- Virtual numbers in multiple countries
- Encrypted, secure communication
Pricing: Standard plan starts at $14.49 per user, per month. Professional plan starts at $16.69 per user, per month.
G2 Rating: 4.9 out of 5
How Does Traditional Telephony Compare to an AI-Powered VoIP System?
Traditional phone systems lock you into fixed hardware, high per-minute international rates, and zero visibility into call outcomes. An AI-powered VoIP system like FreJun routes calls over the internet, records and transcribes every conversation, and pushes structured data into your CRM automatically, so your team always has context before the next call.
The biggest operational difference is data. Traditional telephony gives you a phone bill. AI-powered VoIP gives you call duration, talk-to-listen ratio, outcome tags, and a searchable transcript, all without any manual input from your reps. That shift alone changes how sales managers run weekly reviews.
According to Grand View Research, the global VoIP market was valued at $134.5 billion in 2023 and is projected to grow at a 10.2% CAGR through 2030, driven largely by business adoption of cloud-based calling platforms. (Source: Grand View Research, 2024)
Why Businesses in Vietnam Are Switching to VoIP
Vietnam’s internet infrastructure has improved significantly over the past five years. With broadband penetration above 79% (Source: GSMA Mobile Economy Asia Pacific 2024), VoIP call quality is now reliable enough for customer-facing teams. The cost difference versus traditional international calling is substantial, often 60-80% lower per minute for calls to the US, UK, or Australia. Teams expanding into regional markets can also explore the best VoIP providers in Singapore for a country-specific comparison covering pricing and CRM integrations.
FreJun’s internal 2026 data across 300+ client accounts shows teams using AI call automation cut manual CRM update time by approximately 75% and improved follow-up rates by 30% within the first 90 days. (FreJun internal data, 2026)
2. Viettel Telecom
Viettel Telecom is Vietnam’s largest telecommunications operator and a dominant force in the country’s VoIP market. It covers international calling to over 200 countries, with competitive per-minute rates and a broad range of plans for both individuals and businesses.
Viettel’s strength is its domestic network depth. If your team is primarily calling within Vietnam or to neighboring Southeast Asian markets, Viettel’s infrastructure gives you reliable call quality at low cost. That said, it lacks the CRM integration and AI features that sales-focused teams need.
Viettel Telecom Features and Pricing
- High-quality voice calls with minimal latency
- International calling plans covering 200+ countries
- Advanced call management: forwarding, voicemail
- Reliable customer support
- Integration with select business tools
Pricing: Plans start from around 60 VND/month for basic options, with more complete packages available for enterprise users.
G2 Rating: Not listed
3. FPT Telecom
FPT Telecom is one of Vietnam’s most recognized telecom brands, known for affordable rates and a user-friendly mobile app that lets users call over Wi-Fi or mobile data. It is a practical choice for businesses that want HD voice quality without complex setup requirements.
FPT’s 24/7 customer support is a genuine differentiator among local providers. If your team operates across time zones, having round-the-clock support reduces the risk of extended downtime during critical calling windows.
FPT Telecom Features and Pricing
- Competitive international calling rates
- Flexible plans for businesses and individuals
- HD voice quality
- Scalable solutions for large enterprises
- 24/7 customer support
Pricing: Multiple plans available on the FPT website.
G2 Rating: Not listed
4. VNPT-Vinaphone
VNPT-Vinaphone is a state-backed telecommunications provider with one of the largest network infrastructures in Vietnam. It offers a wide range of VoIP plans, with value-added services like conferencing and call recording that make it useful for teams running regular client calls or internal meetings.
VNPT-Vinaphone’s network stability is its strongest selling point. Since it operates on government-backed infrastructure, uptime is generally high, which matters if your business depends on uninterrupted calling during business hours.
VNPT-Vinaphone Features and Pricing
- Reliable call quality with global coverage
- Customizable international calling packages
- Easy setup and user-friendly interface
- Strong network stability
- Conferencing and call recording included
Pricing: Multiple plans available on the Vinaphone website.
G2 Rating: Not listed
5. Mobifone
Mobifone offers a broad range of telecommunications services, including a VoIP option with call recording and call forwarding built into its mobile app. It is a well-known brand in Vietnam, so local customer support is accessible and responsive.
Mobifone works well for small businesses and individuals who want a familiar local provider rather than an international platform. If your team is primarily calling within Vietnam or to a small set of international destinations, Mobifone’s flexible payment plans keep costs predictable.
Mobifone Features and Pricing
- High-quality voice calls with minimal interruptions
- Various international calling options
- Advanced security features
- Flexible payment plans
- Support for personal and business use
Pricing: Contact the Mobifone team directly for current pricing.
G2 Rating: Not listed
6. Netnam
Netnam is one of Vietnam’s established internet service providers that has extended its offering into VoIP. It stands out among local providers for including call analytics and reporting features, which gives operations teams basic visibility into call volume and performance.
Netnam’s customer-centric approach means issues are typically resolved quickly. If you are running a small support team and need a local provider with decent reporting, Netnam is worth considering, though it does not match FreJun’s depth of CRM integration or AI features.
Netnam Features and Pricing
- High-quality calls with global reach
- Competitive pricing and flexible plans
- Reliable network with minimal downtime
- Call analytics and reporting
- Dedicated customer service
Pricing: Multiple options available on the Netnam website.
G2 Rating: Not listed
7. VNPT-Ca Mau
VNPT-Ca Mau is a regional branch of the VNPT group, focused on the Ca Mau province in southern Vietnam. Despite its regional scope, it covers international calling to more than 200 countries and maintains a strong reputation for call quality and customer service at accessible price points.
The most practical use case for VNPT-Ca Mau is a business based in southern Vietnam that wants a local provider with national VNPT backing. The pricing is generally lower than the national VNPT-Vinaphone plans, while the call quality remains consistent.
VNPT-Ca Mau Features and Pricing
- Strong call quality with reliable connectivity
- Affordable international call rates
- Simple call management tools
- Customized plans for different needs
- Responsive customer support
Pricing: Contact the VNPT-Ca Mau team for current rates.
G2 Rating: Not listed
8. Vietnamobile
Vietnamobile offers a range of telecommunications services including VoIP for international calling, with one of the lowest entry-level price points on this list. Its mobile app makes account management and calling straightforward, which suits small businesses that want a no-fuss setup.
Vietnamobile is a solid choice if budget is the primary constraint and your team does not need advanced analytics or CRM integration. The trade-off is that it lacks the enterprise features that growing sales teams typically need as they scale.
Vietnamobile Features and Pricing
- Clear voice calls and stable connection
- Variety of international calling plans
- Easy setup and user-friendly service
- Good customer service and support
- Cost-effective solutions for small businesses
Pricing: Starting at around 25 VND/month.
G2 Rating: Not listed
9. VTC Digicom
VTC Digicom is part of Vietnam’s state-owned VTC group and offers VoIP services with HD voice quality and integration support for business tools. It is a reliable option for companies that want a government-backed provider with scalable infrastructure.
VTC Digicom’s scalability is its main advantage. Since it is part of a larger state infrastructure group, capacity is rarely a constraint, even for businesses with high call volumes. The downside is that its product roadmap moves more slowly than independent VoIP platforms.
VTC Digicom Features and Pricing
- HD voice quality
- International calling options
- Reliable and scalable service
- Good network reliability and support
- Integration with select business tools
Pricing: Contact the VTC Digicom team for pricing details.
G2 Rating: Not listed
10. Indochina Telecom
Indochina Telecom is a fast-growing telecom company in Vietnam that has invested consistently in its network infrastructure. That investment shows in call quality and connection stability, which are both strong relative to its size.
Indochina Telecom covers a broad range of international destinations and backs its service with a dedicated support team. It is a good option for businesses that are scaling quickly and need a provider that can grow with them, though it does not yet offer the AI-driven features that platforms like FreJun provide.
Indochina Telecom Features and Pricing
- Strong voice call quality with global reach
- Cost-effective international calling options
- Flexible and customizable plans
- Good network stability and reliability
- Efficient customer service
Pricing: Contact the Indochina Telecom team for current pricing.
G2 Rating: Not listed
11. Hanoi Telecom
Hanoi Telecom is a regional provider focused on northern Vietnam, with a growing reputation for competitive VoIP pricing and reliable call quality. It covers a wide range of international destinations and offers advanced call management features that suit businesses running structured outbound calling programs.
Hanoi Telecom is a practical choice for businesses based in Hanoi or the northern provinces that want a local provider with good integration support for business systems. The pricing is competitive, though you will need to contact the team directly for a current quote.
Hanoi Telecom Features and Pricing
- Reliable and clear voice calls
- Variety of international calling plans
- High-quality customer service
- Advanced call management features
- Good integration with business systems
Pricing: Contact the Hanoi Telecom team for current rates.
G2 Rating: Not listed
Which VoIP Features Matter Most for Business Teams in Vietnam?
Not every VoIP feature carries equal weight for business teams. The table below shows which capabilities are essential versus nice-to-have, based on how sales and support teams actually use their calling platforms day to day.
| Feature | Importance for Business Teams | FreJun Support |
|---|---|---|
| AI Call Automation | Essential for sales teams | Yes, built-in |
| CRM Integration | Critical for pipeline visibility | HubSpot, Salesforce, Zoho, Pipedrive |
| Global Call Connectivity | High for international teams | Yes, 50+ countries |
| Call Recording and Transcription | Must-have for coaching | Yes, automatic |
| Virtual Numbers | High for local presence | Yes, multiple countries |
| Business Workflow Integration | Critical for ops efficiency | Yes, via API and native integrations |
| Auto-Dialer | High for outbound teams | Yes, built-in |
The most common mistake teams make when choosing a VoIP provider is optimizing for the lowest per-minute rate while ignoring integration depth. A provider that saves you $0.02 per minute but requires manual CRM updates costs far more in rep time over a quarter.
How Do You Choose the Right VoIP Provider in Vietnam for Your Business?
Choosing the right VoIP provider in Vietnam comes down to three questions: What CRM does your team use? How many international destinations do you call regularly? And do you need AI features like call transcription and auto-logging, or just reliable voice quality at a low price?
Step-by-Step: How to Evaluate a VoIP Provider for Your Vietnam-Based Team
- List your CRM and workflow tools first. If your team uses HubSpot, Salesforce, Zoho, or Pipedrive, confirm the VoIP provider has a native integration before anything else. Manual logging is a hidden cost that compounds quickly.
- Check international destination coverage. Confirm the provider covers the specific countries your team calls most. Some local Vietnamese providers have gaps in coverage for North America or Europe.
- Request a call quality test. Ask for a trial period or demo call to the destinations you call most frequently. Latency and packet loss vary significantly between providers.
- Compare total cost of ownership, not just per-minute rates. Factor in per-user licensing, number provisioning fees, and any add-on costs for recording or analytics.
- Evaluate support responsiveness. Send a pre-sales question to the support team and time the response. If it takes more than 24 hours before you are a customer, expect the same after.
- Check for AI and automation features. If your team makes more than 50 calls per day, auto-dialing, call transcription, and outcome tagging will save meaningful time each week.
The data shows that teams which evaluate VoIP providers against their CRM stack first, rather than price first, end up with higher adoption rates and better call data quality within 60 days of switching.
Why the Top 11 VoIP Providers in Vietnam Cover Every Business Need
Vietnam’s VoIP market gives businesses real options across every budget and use case. Local carriers like Viettel, FPT, and VNPT-Vinaphone deliver reliable domestic and international coverage at competitive Vietnamese pricing. Regional providers like VNPT-Ca Mau and Hanoi Telecom serve specific geographies well. For sales and support teams that need CRM integration, call automation, and AI-driven insights, FreJun is the clear choice among the top 11 VoIP providers in Vietnam.
The right provider depends on your team’s size, the CRM tools you already use, and whether you need basic calling or a full call automation stack. If you are running a sales team that makes 30 or more calls per day, the difference between a basic VoIP line and an AI-powered platform like FreJun is measurable in pipeline data quality and rep productivity within the first month.
Further Reading: Top 10 VoIP Providers in Sri Lanka for Seamless International Calling
Frequently Asked Questions About VoIP Providers in Vietnam
What does VoIP mean?
VoIP stands for Voice over Internet Protocol, a technology that routes voice calls over the internet rather than traditional phone lines. For businesses in Vietnam, VoIP means lower international call costs, built-in call recording, and the ability to connect your phone system to your CRM. FreJun is a VoIP platform built specifically for sales and support teams, with AI call logging and direct CRM integrations included at every pricing tier.
Are international VoIP calls legal and reliable in Vietnam?
Yes, VoIP is legal in Vietnam and widely used by businesses for international communication. The Ministry of Information and Communications (MIC) regulates VoIP services, and licensed providers like Viettel, FPT, and VNPT operate under full compliance. Reliability has improved significantly as Vietnam’s broadband infrastructure has expanded, with internet penetration now above 79% according to the GSMA. FreJun uses encrypted SIP trunking for secure, stable international calls.
What features should I look for in a VoIP provider?
The most important features for business teams are CRM integration, call recording, caller ID, virtual numbers, and international destination coverage. If your team makes high call volumes, auto-dialing and call transcription become essential. FreJun covers all of these, plus AI-powered call summaries and outcome tagging that feed directly into your CRM pipeline. For teams that only need basic calling, any of the local Vietnamese carriers on this list will work.
Is VoIP more affordable than traditional phone services for international calls?
Yes, VoIP is significantly cheaper than traditional international calling from Vietnam. Traditional mobile and landline international rates can run several times higher per minute than VoIP rates for the same destinations. FreJun’s Standard plan starts at $14.49 per user per month, which includes unlimited domestic calls and competitive international rates. The cost difference is most pronounced for teams calling frequently to the US, UK, Australia, or other high-cost destinations.
Can businesses in Vietnam use VoIP for customer service and support?
Absolutely. VoIP is well-suited for customer service teams because it supports call routing, IVR menus, call queuing, and call recording out of the box. FreJun is particularly strong for customer-facing teams since it logs every call to your CRM automatically, flags missed follow-ups, and gives managers a real-time view of team activity. Many Vietnam-based support teams use FreJun alongside HubSpot or Zoho to manage their full customer communication workflow.
Do VoIP providers in Vietnam offer customer support?
Most established VoIP providers in Vietnam offer customer support, though the quality and availability vary. Local carriers like Viettel and FPT provide Vietnamese-language support during business hours. FreJun offers dedicated support across time zones, which matters if your team operates outside standard Vietnam business hours or needs help with CRM integration setup. Before committing to any provider, test their support response time with a pre-sales question.
Can I keep my existing phone number when switching to a VoIP service?
Number portability depends on the provider and the type of number you are porting. Most major Vietnamese carriers support domestic number porting with a standard process that takes a few business days. FreJun supports number portability for eligible numbers, so your team can keep existing contact numbers while gaining access to AI call automation and CRM integration. If number retention is critical, confirm portability eligibility with your chosen provider before signing up.
Which VoIP provider is best for a small business in Vietnam?
For small businesses that primarily need affordable calling without complex setup, Vietnamobile or Mobifone are practical starting points given their low entry pricing. But if your small business uses a CRM and wants call data that actually helps you close deals, FreJun’s Standard plan at $14.49 per user per month gives you AI call logging and CRM sync that local carriers simply do not offer. The productivity gain typically outweighs the price difference within the first month.
You have just seen how the top 11 VoIP providers in Vietnam stack up across pricing, features, and use cases. The gap between knowing which provider fits your team and actually getting your team live is usually just one conversation. Most teams that book a FreJun demo are making calls through their CRM within a week.