By SMS, in one tap
Missed calls collect in their own list. Open one, tap Message, pick the “sorry we missed you” text and send it from your SIM. Best for callers who are not on WhatsApp.
Auto SMS after call
Auto SMS after call, one tap from your own SIM.
You want the customer to get a text the moment the call ends. RMDialer opens your SMS app with the saved message already written and addressed, so it is one tap from your own number. If no tap at all is the goal, the same message can go as an automatic WhatsApp.
- Saved texts, ready the moment the call ends
- Sent from your own SIM and number
- WhatsApp for the no-tap version
Free personal dialer. Paid features include a 3-day trial; no card required.
Team plans: ₹159/user/month, billed yearly + taxes →01 / Call, WhatsApp and SMS on every cardProduct illustration
Honest about the tap.
RMDialer does not send SMS in the background; it gets the text ready so sending takes a second.
Short answer
Can you send an auto SMS after a call?
Very few Android apps send SMS by themselves after a call, because Google Play restricts that permission. RMDialer opens your SMS app with the saved message written and addressed the moment the call ends, so the text goes from your own SIM in one tap. For a message with no tap at all, it sends WhatsApp automatically instead.
Key takeaways
- SMS from RMDialer is one tap, never silent.
- {name} fills in before the SMS app opens.
- Automatic, zero-tap messages go by WhatsApp.
Taps, reach and cost
What are the ways to send a text after every call?
Each route gets a message to the customer after the call. They differ in how many taps it takes, who it reaches and what it costs.
| Route | Taps after the call | Reaches | Cost |
|---|---|---|---|
| SMS from your own SIM, ready to send | One tap | Any phone, including basic ones | Your mobile plan’s SMS; many Indian plans cap around 100 a day |
| WhatsApp through the Business API | None, sends by itself | People on WhatsApp | Meta’s per-message charge through your provider |
| WhatsApp opened ready to send | One tap | People on WhatsApp | Nothing extra |
| Bulk SMS gateway | None | Any phone | Gateway rates, plus DLT sender and template registration in India |
Why not simply send the text in the background? Two reasons sit outside any one app’s control. Google Play allows only a short list of app types to send SMS without the person pressing send, and an app that asks for that permission without a qualifying reason does not pass review. And in India, texts a business sends in bulk count as commercial SMS: they travel through a registered header and pre-approved DLT templates, which a personal SIM cannot use. A text you send yourself, one at a time, to someone you have just spoken to is ordinary person-to-person messaging, which is why the one-tap route stays on your own number.
An RO water purifier service in Lucknow
When does an SMS after the call still beat WhatsApp?
Picture a water purifier sales and service business in Lucknow. Half its customers are families booking a filter change; many of the older ones answer on a basic keypad phone with no WhatsApp at all.
After each booking call the technician’s visit is confirmed by text. For customers on WhatsApp, the outgoing-call rule sends the visit time by itself. For the keypad phones, the caller taps Message, picks the saved “visit booked” text with the customer’s name already in it, and presses send. Four seconds, from the business’s own number, which the family recognises when the technician rings the bell.
The service reminder six months later is a follow-up date on the same record, so the next filter change is never left to memory. The details are an illustration, not a named client.
Missed calls
How do you reply to a missed call with a text?
A missed call is the after-call message that matters most, because the customer is waiting. There are two ways to answer it in RMDialer.
By WhatsApp, with no tap
Turn on the missed-call rule once and every missed caller gets your WhatsApp by itself, with a cooldown so a person who rings three times gets one message, and quiet hours for the night.
Then call back
Either message buys a few minutes. The missed list is also the callback queue, so the text is followed by a real conversation rather than standing in for one.
Keep a missed-call text shorter than feels polite. The caller reads it on a lock screen while doing something else, so one sentence that says you saw the call and when you will ring back does more than a paragraph about your business. Sign it with a first name: a text from Ramesh at the shop gets a reply far more often than one from the shop.
The full rules for messages after every kind of call are on the auto WhatsApp message after call page, the no-tap missed-call message on missed call auto WhatsApp, and the callback side on missed call management software. Everything that runs after a call is on post call automation. Ready-made wording for these texts is in WhatsApp auto reply message samples, and most of it works as an SMS too.
Try it with your own workflow
Set up your after-call texts
We save your after-call and missed-call texts as templates, then make a test call so you see the SMS open ready to send, and the WhatsApp go by itself.
Team features, one plan
₹159/user/month
₹1,908 per user, billed yearly, plus taxes.
- Lead statuses, remarks and reminder scheduling
- Assigned calling lists and employee reports
- List auto dialing and WhatsApp automation
The personal dialer, call log and personal analytics are free forever. Team access and saved lead workflows require a plan. SIM charges and any WhatsApp provider charges are separate.
Compare free and paid features → Questions
Auto SMS after call: questions
Can RMDialer send an SMS automatically after a call?
Not by itself. When the call ends, RMDialer opens your SMS app with the saved message already written, and you tap send. For a text that goes with no tap at all, set the same message as an automatic WhatsApp instead.
Why do so few apps send SMS automatically after a call?
Google Play treats SMS sending as a restricted permission and allows it for a short list of uses. Apps that send texts in the background from your SIM also risk your operator flagging the number, which is why most business tools send through a gateway or WhatsApp instead.
How do I send a text message after a call in one tap?
Save the message once as a template. After the call, tap Message on the call screen, the call notification or the customer’s card, pick the template, and your SMS app opens addressed to that number with the text filled in. Tap send.
Can the after-call SMS include the customer’s name?
Yes. Variables such as {name} fill from the lead before the SMS app opens, so the customer reads their own name. Photos and files cannot go by SMS, so only the text is added; send those on WhatsApp.
How do I reply to missed calls with an SMS?
Missed calls sit in their own list in RMDialer. Open one and tap Message to send your saved missed-call text in one tap. If the reply must go out by itself, the missed-call WhatsApp rule sends with no tap while you are busy.
Is a bulk SMS gateway better than SMS from my own number?
A gateway sends by itself at volume, but in India it needs DLT registration for the sender ID and each template, and texts arrive from a header, not your number. SMS from your own SIM is personal and needs no registration, but each one is a tap.
Which is better after a call, SMS or WhatsApp?
WhatsApp, when the customer uses it: it can send by itself, carry a brochure or price list, and show you whether it was read. SMS is the fallback for customers on basic phones or without WhatsApp, and it reaches every handset.
What should a text message after a call say?
One line thanking them, the one thing you promised on the call, and your name. For example: “Thanks for your time, Mr Verma. The service visit is booked for Thursday, 11 am. Ramesh, [Business].” Short texts get read on the lock screen.
Does sending SMS from RMDialer cost anything?
RMDialer adds no charge for SMS. The text goes from your own SIM, so your mobile plan pays for it as it would for any message you send by hand.
Does the after-call SMS show in the customer’s history?
The call, its outcome and your remark are saved on the lead. The SMS itself is sent from your phone’s messaging app, so it stays in that app’s conversation with the customer.
What does RMDialer cost?
In India the plan is ₹159 for each user monthly when paid for the year, plus GST; $29 per user per year, or $12 per user for 3 months, outside India. Saved texts, the Message button on calls, automatic WhatsApp and reminders all come with it.