AI-Powered SMS Support via Twilio. Every inbound text answered instantly — from your knowledge base.
Connect your Twilio number to VocUI and train it on your FAQs, services, and policies. Every text your customers send gets an immediate, accurate reply — no human required.
No credit card required · Requires a Twilio account · US businesses must complete A2P 10DLC registration
US businesses: A2P 10DLC registration required
If you send texts to US numbers from a 10-digit long code, US carriers require brand and campaign registration through The Campaign Registry (TCR) via Twilio. Without registration, messages may be filtered. Toll-free number verification is a separate process. Learn more at Twilio.
You send texts. Customers text back. Nobody answers.
Most businesses use SMS for outbound — reminders, confirmations, campaigns. The return traffic goes unanswered because there's no automation on inbound. VocUI closes that gap.
Customers text you. You reply hours later.
Text has a 98% open rate and a sub-3-minute average response expectation. When your team can't keep up, customers don't wait — they text a competitor who does reply.
Support texts and sales texts get the same slow treatment
Whether it's "What are your hours?" or "Is my appointment confirmed?", every inbound text lands in the same queue. The answers are simple. The delay is not.
Your Twilio number sits idle between outbound campaigns
You use Twilio to send appointment reminders and confirmations. But when customers text back with questions, there's no automation in place — just a number that rings into silence.
Your SMS chatbot live in three steps
Connect your Twilio number
Enter your Twilio account credentials and select the phone number you want to power with AI. VocUI configures the webhook automatically.
Train on your content
Upload FAQs, service descriptions, pricing, and policies. VocUI builds a knowledge base the bot pulls answers from directly.
Reply to every inbound text instantly
Every text your number receives gets an immediate AI reply sourced from your knowledge base. Human handoff triggers available.
Everything your SMS bot needs to handle inbound texts
Accurate, instant, grounded in your content. VocUI turns your Twilio number into a two-way support channel — without adding to your team's workload.
Instant replies to inbound texts
Every SMS your Twilio number receives gets an immediate, knowledge-base-powered reply. No delays, no queues, no missed messages.
Bring your own Twilio number
Connect the Twilio long code, toll-free, or short code number you already use. VocUI plugs in via webhook — no number migration needed.
Answers from your knowledge base
Replies come from the content you upload — FAQs, service pages, policies, pricing docs. Accurate, grounded, never made up.
A2P 10DLC compatible
VocUI's SMS replies comply with A2P messaging standards. US businesses completing Twilio's 10DLC registration can use VocUI without carrier filtering risk.
Human handoff triggers
Configure keywords or fallback conditions that pause the bot and alert your team to take the conversation over manually.
Multi-channel, one knowledge base
The same trained content powers SMS, your website chatbot, Instagram DMs, and more. Train once, stay consistent everywhere.
Who uses VocUI for SMS
Any business that already texts customers — or wants to — can add AI to their inbound SMS with VocUI and a Twilio number.
Appointment-based businesses
Reply to booking confirmations, reschedule requests, and availability questions automatically via the same number you use for reminders.
Field service & trades
When customers text you about quotes, job status, or emergency call-outs, get them an immediate answer — even when you're out on a job.
Customer support lines
Add AI to your SMS support number. Handle FAQs, order queries, and status updates automatically before escalating to a human.
Sales & lead follow-up
When leads text back from an SMS campaign, qualify them instantly with AI rather than letting them go cold waiting for a human reply.
Businesses that turned their Twilio number into a support channel
“We text appointment reminders to 200+ clients a week. Half of them text back with questions. VocUI handles all of it automatically now.”
D.H.
Operations Manager, Medical Clinic
“Our Twilio number was one-directional — we sent, customers replied and got silence. VocUI turned it into a real two-way support channel.”
T.R.
Head of Customer Success, Home Services Company
Common questions about VocUI for SMS
Do I need a Twilio account to use this?
Yes. VocUI connects to your existing Twilio account and phone number. You bring the Twilio number — VocUI provides the AI that answers inbound texts from your knowledge base.
What is A2P 10DLC and do I need to register?
A2P 10DLC (Application-to-Person 10-Digit Long Code) is the US carrier registration standard for business SMS. If you're sending texts to US numbers from a 10-digit long code, you are required to register your brand and campaign with The Campaign Registry (TCR) before sending. Twilio handles this registration process. VocUI's replies are considered A2P traffic, so US-based businesses must complete 10DLC registration to avoid message filtering.
Can I use a toll-free number instead of a 10DLC number?
Yes. Toll-free numbers (TFNs) have a separate verification process and are a common alternative to 10DLC for many SMS use cases. Short codes are also supported. VocUI works with any Twilio number type — long code, toll-free, or short code.
Will the bot reply to every inbound text automatically?
Yes. Once configured, VocUI intercepts every inbound SMS on your Twilio number and sends an AI-generated reply sourced from your knowledge base. You can configure keywords that trigger human handoff.
Can the same knowledge base power my website chatbot too?
Yes. One VocUI knowledge base powers all your channels — SMS, your website widget, Facebook Messenger, Instagram DMs, and Slack. Update your content once and every channel reflects the change.
Reach your SMS customers on every channel they use
Deploy the same AI chatbot across Website widget, WhatsApp, Email, Messenger, Slack, and Teams — all from a single knowledge base. Train once, deploy everywhere.
Make your Twilio number a two-way support channel.
Build an AI chatbot that answers inbound texts from your knowledge base. Every SMS handled. No manual replies. No missed messages.
Free 14-day Pro trial · SMS from $79/mo (Pro) · US businesses must complete A2P 10DLC registration
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