How it works · Verified
Missed call text back, explained
Missed-call text-back is a workflow, not a product: when an inbound call goes unanswered, an SMS goes out from the same number offering to help, and the conversation moves to text. The point is not the message. It is that the caller stops dialling the next business on their list. Running it costs two things — a platform subscription starting around $97 a month, and the message itself at $0.00747 per segment plus a carrier surcharge of $0.0035 to $0.005, so roughly $0.0110–$0.0125 each. At 200 missed calls a month the messaging comes to about $2.33; the subscription is the real decision. It is worth automating when your call volume genuinely exceeds what a person can catch, and not before.
What actually happens
Four steps, and none of them are clever:
- A call comes into your business number and nobody picks up.
- The phone system fires a trigger on the missed-call event.
- A workflow sends an SMS from that same number — something like “Sorry we missed your call, what can we help with?”
- The caller replies by text. That reply lands in an inbox a human actually watches, and the conversation continues.
Step three is where most cheap implementations fail. If the text arrives from a different number, the caller has no reason to trust it and their reply goes somewhere nobody reads.
Step four is where most expensive implementations fail. A text that starts a conversation nobody answers is worse than no text, because now you have annoyed someone who was already trying to give you money.
What it costs per message
The base rate is $0.00747 per segment. The recipient's mobile carrier then adds a surcharge, passed straight through and published per carrier:
| Recipient carrier | Base rate | Carrier fee | Real cost per segment |
|---|---|---|---|
| AT&T | $0.00747 | $0.0035 | $0.01097 |
| T-Mobile | $0.00747 | $0.0045 | $0.01197 |
| Verizon | $0.00747 | $0.0045 | $0.01197 |
| US Cellular | $0.00747 | $0.005 | $0.01247 |
| All other carriers | $0.00747 | $0.004 | $0.01147 |
So call it a cent a message. At 200 missed calls a month that is $2.33 in messaging — genuinely trivial.
Two things inflate it if you are careless. A message over 160 GSM characters splits into multiple segments and bills for each, and a single emoji switches the encoding and drops that limit to 70 characters. Keep the text short and plain and you stay at one segment.
Why the subscription is the real cost
Nobody sells missed-call text-back on its own for long, because on its own it is half a feature. To be useful it needs a phone number it controls, a place the reply lands, a person assigned to answer, and a record of whether the lead converted. That is a CRM.
On GoHighLevel that is $97 a month for the entry plan. The messaging is a rounding error next to it. Which means the honest question is not “is text-back worth a cent a message” — it obviously is — but “is the platform worth $97 a month to me”.
Work that out with your own numbers on the missed-call revenue calculator. If the recovered revenue does not clear the subscription with room to spare, the answer is no.
The registration nobody warns you about
Sending application-to-person SMS in the US requires A2P 10DLC registration: your brand and campaign have to be registered with The Campaign Registry before carriers will reliably deliver your messages.
There are fees — for a sole proprietor, up to $23.475 one-time and up to $2.1 a month per campaign, with a 3,000-segment daily cap. There is also a waiting period, and campaigns get rejected for fixable but non-obvious reasons.
Budget for this before you promise anyone a launch date. It is the single most common reason a text-back rollout slips.
When it does not work
Three situations where this is the wrong purchase:
- Your volume is low. If you miss a handful of calls a week, the recovered revenue will not cover a subscription. Answer the phone.
- Your customers do not text. Some demographics and some B2B buyers will not engage over SMS, and a text to them is noise.
- Nobody is going to answer the replies. The automation opens conversations; it does not have them. If there is no one to pick those up within minutes, you have automated a way to disappoint people faster.
The honest version of the pitch is narrow: this is worth buying when your call volume genuinely exceeds what a person can catch, and someone is ready to take over the conversation the moment it starts.
Common questions
What is missed call text back?
An automation that fires when an inbound call goes unanswered and sends the caller an SMS from the same number — typically an apology and an offer to help. The caller replies by text and the conversation continues there. It is a workflow, not a product category, and most CRM platforms with a phone system can do it.
How much does missed call text back cost per message?
About a cent. On GoHighLevel the base rate is $0.00747 per SMS segment, and the recipient's carrier adds a surcharge on top — $0.0035 for AT&T, $0.0045 for T-Mobile and Verizon, $0.0050 for US Cellular. So roughly $0.011 to $0.012 per message in practice. The subscription is the real cost, not the messages.
Is there free missed call text back software?
Not meaningfully. Some phone systems include a basic version, but anything that also stores the conversation, routes it to a person and tracks whether the lead converted needs a CRM behind it, and those start around $97 a month. A free tool that texts and forgets solves the smaller half of the problem.
Does the reply come from my real business number?
It should. If the text arrives from a different number the caller has no reason to trust it, and replies land somewhere nobody reads. This is why the feature is normally tied to a platform that owns your phone number rather than a bolt-on.
Is automated texting legal?
In the US it falls under TCPA. Replying to someone who has just called you is a very different situation from texting a purchased list, and the second one is what gets businesses sued. Sending SMS at any volume in the US also requires A2P 10DLC registration, which takes time and carries its own fees.
How fast does the text need to go out?
Immediately. The entire value is catching the caller before they dial the next business on their list. A text that arrives an hour later is a follow-up, not a save, and it competes with whoever already answered.
Independence note. NodeRow does not speak for HighLevel and is not affiliated with it beyond earning an affiliate commission. Comparisons here are our own assessment.
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