What is Missed Call SMS?
An automatic text message sent to a caller within seconds of a call going unanswered.
Missed call SMS — sometimes called 'text-back' — is the practice of automatically sending an SMS to anyone whose call to your business went unanswered. The message typically includes a friendly greeting, an apology, and a link to book or reply by text.
It exists because of a hard fact: roughly 60% of missed callers never call back. They Google the next business and dial. A text-back, sent within seconds, recovers many of these callers before they have moved on.
Missed call SMS works on top of an existing business phone line — you do not need to change your number. The caller just receives a text from your business and can reply or click a booking link.
HOW CALLARA USES THIS
Callara fires a personalized text-back the moment a call goes unanswered — with a booking link and an option to reply by text.
Frequently asked questions
What is a missed call SMS?
A missed call SMS is an automatic text sent to a caller within seconds of their call going unanswered. It usually includes a short greeting, an apology, and a link to book or reply by text.
How does missed call text-back work?
When a call rings out or goes to voicemail, the system detects the unanswered call and immediately texts that number from your business line — no app or action needed from the caller.
Do I need to change my phone number to use missed call SMS?
No. Missed call SMS works on top of your existing business line, so you keep your current number. The caller simply receives a text from your business and can reply or tap a booking link.
Does Callara send a missed call text-back?
Yes. When a call goes unanswered, Callara can automatically send the caller a personalized text with a booking link and the option to reply by text, so the lead isn't lost.
Why does missed call SMS matter?
Roughly 60% of missed callers never call back — they dial the next business instead. A text-back sent within seconds recovers many of those callers before they move on.
How fast is the missed call text sent?
Within seconds of the call going unanswered. Speed is the whole point — the sooner the text lands, the more likely the caller is still deciding who to hire, rather than already talking to a competitor.
Is missed call SMS the same as an AI receptionist?
No — they're complementary. Missed call SMS texts back a caller you didn't answer. An AI receptionist actually answers the call live, books appointments, and takes messages. Callara does both: it answers in real time and, when a call still goes unanswered, sends an automatic text-back so the lead isn't lost either way.
Related terms
After Hours Answering
Coverage for incoming calls received outside your normal business hours, including evenings, weekends, and holidays.
AI Receptionist
Software that answers business calls in a human-like voice, qualifies callers, and books appointments.
AI Appointment Booking
Software that books, reschedules, and cancels appointments through conversation, by voice or text.
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