Two-way SMS that answers, reminds and follows up.
Reach every phone with concise, conversational SMS. The agent replies to customers, sends reminders and confirmations, and hands off to a call or WhatsApp when the conversation needs more.
- Two-way conversational SMS on your own sender.
- STOP/HELP and opt-outs handled automatically, before any AI runs.
- Quiet hours by market; DLT-registered templates supported for India.
- Reminders, confirmations and follow-ups at the time the customer chose.
What customers see on SMS
- Plain text with numbered choices
- Links to pay, book or download
- Templates for regulated markets
One agent writes once; each channel shows the reply in its best native format, and anything a channel can't draw becomes clear text and links — so no choice or link is ever lost.
The SMS problems Callaro solves
One-way SMS blasts get replies nobody reads.
Every reply gets an answer — rescheduled, confirmed or escalated — from the same agent.
Opt-outs and quiet hours are handled by hand, and mistakes are costly.
STOP/HELP, purpose-based opt-outs and market quiet hours are enforced before anything is sent.
Reminders go unanswered and nothing happens next.
An unanswered reminder can become a follow-up call or WhatsApp at the right time.
What the SMS agent does
Short, clear replies
Answers are written for SMS — concise, with numbered choices and links where a richer channel would show buttons.
Compliance built in
Opt-outs are recorded per purpose and respected everywhere they apply; business-initiated sends follow quiet hours.
Reminders that convert
Payment, appointment and renewal reminders with links — and a call if the customer asks or the reminder goes unanswered.
RCS fallback
When a number can't receive RCS, the message goes out as SMS automatically.
Tools, data and live events — inside the conversation, not after it
Most bots answer from a script and update your systems later. Callaro exchanges data with your systems while the customer is still talking — so nothing breaks when a journey crosses channels or something changes in real time.
Context in before the first word
Customer profile, CRM stage, open orders and the last conversation on any channel are loaded as the call or chat starts — the agent opens warm, never cold.
In-call tool calling
The agent calls your APIs, MCP servers and payment gateway mid-sentence — look up, book, update, charge — and uses the answer immediately.
Runtime context insertion
A payment, a CRM change or a chat message arrives while the call is live? It's inserted into the conversation within seconds, and the agent can say it aloud.
No broken hand-overs
Call to WhatsApp, chat to call, AI to human and back — each step carries the context forward, so customers never repeat themselves.
Engineered for speed
The agent is prepared before the call connects so the greeting is ready on the first moment of audio; prompts are cached, models chosen per use case, and turn-taking tuned for real phone lines.
- Hi, I'm calling about the 2BHK at Skyline Heights.
- Before the first word: CRM profile, last WhatsApp chat and open deal stage loaded into the agent's context.
- Welcome back, Priya — you asked about the east-facing units on WhatsApp yesterday. Two are still open.
- Tool call → inventory API: 2 units, live prices returned and used in the answer.
- Tool call → send WhatsApp: brochure, price sheet and site location delivered mid-call.
- Live event from your payment gateway: booking amount received.
- I can see your booking amount just came through — Unit 1204 is now reserved for you.
After the call: transcript, collected data and outcome to your CRM by webhook; open chats get a summary; a recap email lists what was sent.
One customer, one memory — across channels
SMS is one mouth of the same agent. Every message lands on the same customer record as their calls, chats and emails, so the conversation simply continues.
SMS → call
An unanswered EMI reminder becomes a courteous reminder call on the due date.
Call → SMS
A confirmation or reference number arrives by text before the call ends.
Popular use cases
- EMI and bill reminders
- Appointment confirmations
- OTP-free status updates
- Technician visit windows
Connect what you already use
Use your own sender ID and registered templates.
The same agent on every other channel
Launch your SMS agent.
Book a demo and see one agent handle a journey across voice and messaging, end to end.
Book a demo