After hours
Customers call in the evening to ask about prices, opening hours or open slots, and the line rings out.
AI voice receptionist for Vietnamese service businesses
Don't let a missed call become a missed booking.
Sisu Voice answers every call in natural Vietnamese, handles questions about your services and prices, and books the appointment, even when your whole team is busy with the customers in front of them.
24/7 always onVI + EN natural conversationMinutes to set up
ANSWERING A CALL00:42
Sisu VoiceYour AI receptionist
Booking request captured
AI-GENERATED ILLUSTRATION
Built for businesses where every call countsSpas & wellnessDental & medical clinicsSalonsRestaurants
A familiar problem
Customers call.
Your team is busy.
Vietnamese spas, clinics, salons and restaurants lose bookings every day for one simple reason: nobody picks up the phone. A caller who gets no answer rarely leaves a message. They call the next place on the list.
How Sisu Voice solves itAt peak times
The spa is full, the clinic is seeing patients, the restaurant is in the dinner rush. Staff can't serve a guest and answer the phone at once.
Callers prefer to call
Vietnamese customers still pick up the phone rather than type a message or fill in a booking form.
Voice AI that misses Vietnamese
Most voice AI tools stumble on natural Vietnamese: its tones, regional accents and everyday phrasing.
A receptionist who never misses a call
On every call.
Right when customers need you.
Sisu Voice learns from your own business information, then answers, books and follows up with customers from the first ring to the appointment.
Answers calls 24/7
Every caller gets a warm greeting, any time of day. No more empty hours when nobody can pick up.
New call being answered
Natural Vietnamese, plus English
Fluent, natural Vietnamese conversation, with English for businesses in tourist areas.
Answers from your own information
Services, prices, opening hours and FAQs come straight from the knowledge base your business provides.
Books into your calendar
Captures what the customer needs and creates the appointment directly in your connected calendar.
Confirms via Zalo / SMS
Once booked, the customer receives a confirmation on the channel they already use.
Calls back with reminders
A reminder call before the appointment helps customers remember the time and arrive prepared.
Sample calls
Sounds like a conversation.
Works like a workflow.
Pick an industry to see how Sisu Voice takes a call from the first question to the next step. Calls run in Vietnamese; English translations are shown below each line.
S
Call with Sisu VoiceSpa example
Sample script, not a recording of a real call
SAMPLE OUTCOME
Appointment captured
The customer picks a time after hearing about the service.
NEXT STEP
Send a confirmation via Zalo / SMS and call to remind the customer before the appointment.
These are illustrative scripts showing the call flow. The live web demo, with real voice powered by ElevenLabs, is coming soon.
Less busywork.More calls answered.
Simple setup
Start with what you already have.
No technical team needed. Upload your price list, connect your calendar, and Sisu Voice is ready to take calls in minutes.
01
Upload your price list & service info
Tell Sisu Voice what you offer, what it costs and the questions customers usually ask.
02
Connect your calendar
So every call can end with a confirmed slot in your business calendar.
03
Start taking calls
Test how your AI receptionist answers, then route your calls to Sisu Voice.
Powered by ElevenLabs
A natural voice.
A real conversation.
ElevenLabs Agents, text-to-speech (TTS) and speech-to-text (STT) power every Sisu Voice conversation. Natural Vietnamese voice quality and low latency are the core of the product, so callers feel they are talking to a real receptionist.
- ElevenLabs AgentsRuns the conversation, from greeting to booking
- Speech-to-textUnderstands natural, accented Vietnamese
- Text-to-speechReplies in a warm, human-sounding voice
Sisu Voice
Customer calls
Understands the request
Replies naturally
Now piloting in Hanoi
Every call is a chance to welcome a customer.
We're launching our public web demo and piloting Sisu Voice with our first spa and clinic customers in Hanoi. Run a spa, clinic, salon or restaurant? Join the pilot and let your team focus on the guests in front of them while Sisu Voice takes care of the ones calling in.