AI SMS agents That Reply to Every Text in Seconds
Never leave a customer text unanswered. Use Callvix AI SMS agents to automate replies, answer questions, qualify leads, book appointments, send links and payment requests, and hand conversations to your team when needed. Choose rule-based auto-replies or an AI texting bot that understands each conversation and powers customer support, sales follow-ups, and SMS campaigns from one inbox.
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Trusted by 10 Plus Orgs – marketers, sales, call centers and entrepreneurs
What Is an Outbound AI Call Agent?
An AI SMS agent is an AI-powered texting assistant that manages customer conversations through SMS, understands message intent, and responds naturally using your business knowledge base. Unlike a basic SMS autoresponder or keyword-based texting bot, it can answer questions about pricing, hours, services, and availability, qualify leads, capture customer details, book appointments, send links, confirm orders, and handle follow-ups. When human support is needed, it can escalate the conversation to the right team member with a summary.
With Callvix, configure an AI SMS agent in your browser and connect it to your business phone number, keyword, campaign, or after-hours schedule. Add your knowledge base, customize its tone and message templates, and control the tools it can use. Use AI SMS automation for customer support, sales, lead generation, appointment scheduling, and follow-ups. Connect SMS with an AI voice agent to continue customer conversations across channels without making people repeat themselves.
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Two Ways to Automate a Text Message, One Platform
Not every message needs a conversation, and not every conversation fits a rule. Callvix gives you both types of automated texting, so the response always matches the message.
Rule-Based Auto-Replies
Lives on a phone number and fires off simple, predictable conditions, no AI reasoning involved. Same trigger, same reply, every single time.
- Trigger on a keyword (“STOP”, “HOURS”, “PRICE”), an after-hours text, or a first-time sender
- Sends a pre-written response instantly, with no interpretation
- Best for opt-outs, business-hours notices, order-status replies, and simple FAQ keywords
AI SMS Agent
Reads the full message, works out intent, and replies in natural language using your knowledge base, carrying context across the whole thread.
- Asks follow-up questions, qualifies the sender, and checks availability
- Understands the conversation as it unfolds, not just one keyword
- Best for lead qualification, sales conversations, booking, and support
What actually happens between an inbound text and a reply?
01 Capture Every Incoming Text
Capture Every Incoming Text
Capture inbound SMS messages the moment they reach your business number. Whether a customer replies to an SMS campaign, responds to a missed-call text, submits a website lead, or texts directly, your AI SMS agent starts the conversation instantly.
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02 Route Every Conversation to the Right Agent
Route Every Conversation to the Right Agent
Route each conversation using phone numbers, keywords, campaigns, business hours, contact data, or workflow rules. Send predictable requests to SMS auto-replies and complex conversations to the right AI texting bot for personalized, two-way customer engagement.
03 Understand Intent and Conversation Context
Understand Intent and Conversation Context
Let your AI SMS agent understand what each contact needs by reading the current message, previous texts, and available contact information. Use conversational AI to recognize intent, ask relevant questions, qualify leads, and keep every conversation moving.
04 Deliver Accurate Answers From Your Knowledge Base
Deliver Accurate Answers From Your Knowledge Base
Give customers fast, consistent answers using your business knowledge base. Your AI SMS agent can provide pricing, product information, service details, business hours, policies, availability, FAQs, and service-area information without forcing customers to wait for a representative.
05 Automate Actions That Move Customers Forward
Automate Actions That Move Customers Forward
Turn conversations into outcomes with SMS automation and connected business tools. Let your AI agent book appointments, send links or quotes, capture lead information, update CRM records, apply tags, trigger follow-ups, and coordinate additional calls or messages.
Create a 15-second promotional video showcasing a sleek new smartwatch, upbeat music, energetic pacing, and bold text highlights.
Got it — a short, punchy promo coming up.
Type in your idea or paste your script here…
OpenAI Sora
Long, coherent scenes with rich detail.
Google Veo 3.1
Realistic motion with high-quality output.
Kling AI
Ultra-sharp, high-resolution visuals.
Luma Ray
Cinematic motion and lifelike lighting.
06 Resolve Conversations or Trigger Human Handoff
Resolve Conversations or Trigger Human Handoff
Let the AI SMS agent resolve routine requests automatically and escalate conversations when human support is needed. Transfer the live SMS thread with conversation history, contact details, AI summary, and next steps so representatives can respond without starting over.
07 Track Results and Improve Your SMS Automation
Track Results and Improve Your SMS Automation
Use conversation analytics to measure message volume, response time, lead qualification, appointments booked, resolutions, escalations, opt-outs, and outcomes. Review transcripts and AI summaries to refine workflows, strengthen your knowledge base, and improve automated customer engagement over time.
Six Ways AI SMS Agents Capture More Leads & Book More Calls
Turn every text into an opportunity. Deploy an AI SMS agent where leads go unanswered, follow-ups get delayed, or your team needs help handling high-volume conversations. Start with one workflow, track the results, then expand as your SMS automation proves its value.
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No extra credit required
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60-second onboarding
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AI recommendations
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Average transfer time: <3s
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Success rate: 99.9%
Deploy One Specialized AI Agent For Every Campaign
Stop using one generic texting bot for every conversation. Deploy dedicated SMS AI agents tailored to each campaign, workflow, and use case. Give every agent its own instructions, knowledge, tools, tone, triggers, and escalation rules for more relevant automated conversations.
AI SMS Agents Vs. Auto-Responders, Shared Inboxes, and Manual Texting
AI SMS agents understand natural language, customer intent, and conversation context, while keyword auto-responders send predefined replies, shared SMS inboxes organize conversations, and manual texting requires staff to respond one message at a time. Choose AI SMS automation to handle two-way customer conversations, answer questions, book appointments, send SMS campaigns, and take action at scale without relying on constant manual effort.
| Capability | Manual Texting | Keyword Auto-Responder | Shared Inbox | Callvix AI SMS Agent |
|---|---|---|---|---|
| Replies 24/7 | Only when staff are available | Canned reply only | Waits for a response | Responds instantly, 24/7 |
| Understands natural language | Yes, human | Keywords only | Yes, when read | Yes, understands intent |
| Answers customer questions | Staff knowledge required | No | Manual lookup | Uses your knowledge base |
| Handles two-way conversations | Yes, manually | No | Yes, manually | Yes, across every thread |
| Books appointments by text | Staff books manually | No | Staff books manually | Checks availability and books |
| Manages SMS campaigns | Time-consuming | Sends fixed replies | Overloads the inbox | Sends and responds at scale |
| Handles opt-outs | Manual | Basic STOP handling | Manual | Automatic and logged |
| Tracks outcomes | Message history | Send counts | Message history | Summaries and outcomes |
| Improves responses | Retrain staff | Rewrite messages | Retrain staff | Update rules or knowledge |
Everything You Need to Build, Train, and Run AI SMS Automation
Build, launch, and scale AI SMS automation from one browser-based dashboard. Configure AI SMS agents, automate business texting, launch SMS campaigns, and manage customer conversations without developers, prompt engineering, or separate AI texting tools.
- Start With Ready-to-Use AI SMS Agent Templates Launch faster with ready-made AI SMS agent templates for lead qualification, appointment booking, order updates, review requests, payment reminders, and customer support. Choose a workflow, customize it for your business, and let your AI texting bot handle the conversation.
- Build a Custom AI SMS Agent Without Coding Create a custom AI SMS agent around the way your business works. Define its role, opening message, questions, tone, boundaries, and escalation rules with simple configuration fields, with no coding or prompt engineering required.
- Automate Rule-Based SMS Replies Combine SMS automation with AI to handle both simple and complex customer interactions. Set keyword triggers, business-hours replies, confirmation texts, and opt-in or opt-out messages that run automatically without AI.
- Launch AI-Powered SMS Campaigns Launch scheduled or bulk SMS marketing campaigns and let your AI SMS agent handle the replies. Qualify leads, answer questions, and book appointments through two-way SMS conversations instead of sending every response to a shared inbox.
- Train Your AI SMS Agent on Your Business Knowledge Give your AI SMS agent the information it needs to answer customers accurately. Add pricing, policies, business hours, service areas, product details, and FAQs to create a reliable AI texting bot that responds using your business knowledge.
- Control Your Brand Voice Across Every Text Keep every message consistent with your brand by controlling tone, persona, response length, emoji use, links, and approved templates. Give every SMS AI agent a clear communication style across automated replies, campaigns, and customer conversations.
- Track calls, outcomes, and performance Monitor recordings, transcripts, AI summaries, sentiment, bookings, qualified leads, transfers, opt-outs, and campaign outcomes with detailed outbound call analytics.
Deploy AI SMS Agents Where Unanswered Texts Cost You Revenue
Turn every text into a faster response, stronger customer experience, and more opportunities. Deploy AI SMS agents to automate conversations, qualify leads, book appointments, and route complex questions to your team.
Connect AI SMS Automation With Your Favorite Business Tools
Connect your AI SMS agent with your existing tools to automate conversations, sync customer data, book appointments, manage leads, and streamline workflows across your CRM, calendar, sales, support, and business apps.
Scale Your Texting Without Scaling Your Team
Choose a plan built for more than AI SMS agents. You get AI SMS automation alongside business phone, call center, routing, AI voice agents, analytics and collaboration tools on one platform.
Got Questions? We’ve Got Answers.
1. What is the difference between an AI SMS agent and a basic SMS auto-reply?
2. Can I use an AI SMS agent and auto-replies on the same number?
3. Can an AI SMS agent have a real two-way conversation?
4. Can I run multiple AI SMS agents at the same time?
5. How many SMS conversations can an AI agent handle at once?
6. How do I train an AI SMS agent on my business information?
7. Can AI SMS agents be used for SMS marketing and B2B texting?
8. Can an AI SMS agent book appointments by text?
9. Can an AI SMS agent take actions beyond sending text messages?
10. What happens when an AI SMS conversation needs a human?
11. Can I use my existing business phone number with an AI SMS agent?
12. Can an AI SMS agent work with AI voice agents?
13. Will customers know they are talking to an AI SMS agent?
14. Do I need a developer to set up AI SMS automation, and how can I measure performance?
One Platform. Available on Every Device.
Access Callvix across iOS, Android, Windows, and Linux. Stay connected with your customers, manage calls and SMS, and keep your team productive wherever business takes you.
