A dedicated service contact
Explore the current toll-free offer and connect an eligible active number to your incoming workflow.
Business communications in Vietnam
A Vietnamese toll-free contact.
Support the product conversation.
Give customers a Vietnamese toll-free number for product and service questions. Connect incoming enquiries and supported callbacks through apps, SIP trunks and Voice API.
Toll-free numbers · Voice · SIP · Voice API
Vietnam+84Business calling for Vietnam.
Connect with customers in Vietnam
After the product arrives,
keep help within reach.
A customer may need to discuss a setup question, explain a fault or ask about the next service step. Give Vietnamese enquiries a dedicated contact, with calling tools for the team handling the response.
- Vietnamese phone numbers
- Your business contact
- Inbound & outbound voice
- Enquiries, sales & follow-ups
- Apps & webphone
- Desktop, mobile & browser
- SIP trunks
- Your existing phone system
- Voice API
- Calling in your application
Vietnamese virtual phone numbers
Your business contact.
Choose how enquiries reach you.
Vietnamese toll-free stock is listed in the 122 category. Explore the current selection and connect an active number to a supported incoming workflow for product and service enquiries.
Answer in a way that suits your team
Use IllyVoIP apps or your compatible SIP phone system.
Vietnamese business calling & SIP trunks
Understand the question.
Follow up with the customer.
Call supported Vietnamese landlines and mobiles for customer callbacks, product discussions and service updates. Use IllyVoIP apps or your compatible SIP phone system.
Connect a compatible PBX or SIP phone through IllyVoIP SIP trunks. Carriers and resellers can explore wholesale voice termination to supported destinations in Vietnam.
Be there when they call
Vietnamese customers→Your team
Start the next conversation
Your team→Vietnamese destinations
Incoming enquiries. Outgoing opportunities.
Voice API for Vietnamese calling
Bring calls into
your product-support flow.
Eligible incoming numbers can use Voice API greetings, caller input and transfers. Your application can initiate supported callbacks and receive webhook events through a custom integration.
Explore the Voice APIYour customerYour application
Voice API
GreetListenConnect
A call flow built around your business
Made for the way you work
The right tools.
For every conversation.
Support customers, keep your team connected and build more into your business calling.
Your calling tools, wherever you work
Use IllyVoIP for Windows, iOS and Android, or call from the browser webphone.
Explore the appsSet the rules for outgoing calls
Control permitted countries and prefixes, and set maximum-rate limits for your calling setup.
Explore fraud controlsKeep customer enquiries organised
Queues, agent workspaces and voicemail support a configured incoming workflow.
Explore contact centerMake more possible with AI voice agents.
Build automated conversations into your customer experience, alongside the tools your team uses every day.
Vietnamese business calling
A few things
worth knowing.
Can I get a Vietnamese toll-free number?
Toll-free stock is listed in the 122 category under Viet Nam. Review current availability in your account.
Is this a Hanoi or Ho Chi Minh City number?
No. The offer described here is toll-free, not a geographic city number.
Can I call Vietnamese mobiles?
Supported Vietnamese mobile and landline destinations are listed for outbound voice.
Can my support team share incoming calls?
Use an active number with a supported queue, agent workspace or compatible SIP setup.
Can Voice API connect with product-support software?
Your custom integration can connect supported call actions and webhook events with your software.
Start with IllyVoIP
Your Vietnamese support contact.
Be ready for the next question.
Create your account and explore the services that fit your business.