Auto dialer: Software that dials phone numbers from a list automatically, one after another, so the caller never types a number and only does the talking. Also searched as automatic call dialer, automatic phone dialer or auto calling app: same tool, same category.
Definitions checked 2 September 2026.
In practice an auto dialer takes over the mechanical layer of a calling day: picking the next lead, placing the call, skipping a busy or switched-off number, queuing it for a retry, and, in the better ones, recording what happened before moving on. The caller sees who is being called, talks, taps an outcome, and the next call starts after a short gap. It never automates the conversation itself; software that plays a recording instead of a person is a robocaller, a different and differently regulated product.
The reason it matters is arithmetic. Finding and typing a number, then deciding whether to make the next call, costs 20 to 30 seconds and a small act of will, a hundred times a day. Removing that moves a telecaller from roughly 60 to 100 manual dials a day to 150 to 250, on the same list and the same hours. The types differ by how many lines they open per agent (power, parallel, predictive) and by where they run: on a cloud platform with virtual numbers, or on an Android phone dialing through its own SIM.
For an Indian sales team calling its own enquiries, the SIM-based kind is usually the honest fit: customers see a real mobile number and answer it, calls cost the ordinary plan rate, and no telephony contract is involved. RMDialer, which we make, is a SIM-based auto dialer app with the lead CRM in the same screen, so the outcome of each call is saved in two taps between calls. The full definition, the four types and the legal position are in the explainer linked below.
No. An auto dialer places calls for a human who then talks; a robocaller plays a recorded message to whoever answers. They are different products, and in India the second is regulated as bulk promotion.
How many calls a day does an auto dialer make possible?
Typically 150 to 250 per caller on a SIM-based dialer, against 60 to 100 by hand. The ceiling is talk time, not dialing time, so the number depends on how long conversations run.
What is an auto dialer app?
An auto dialer app calls a list of phone numbers one after another so the caller never types a number. On Android, an app like RMDialer runs the session on the phone itself using the SIM already in it: you pick a list from Excel, a Google Sheet, an API or assigned leads, press start, and the app dials each number in turn while you mark the outcome between calls.
Does RMDialer work on iPhone?
No. RMDialer is an Android app because iOS does not let a third-party app replace the phone dialer, read the call log or place calls automatically. It supports Android 8.0 and above. The owner's Web CRM works in any browser, including Safari on a Mac or iPhone.
How does an auto dialer work on a mobile phone?
The app becomes the phone's dialer, reads a list you give it and places each call over the SIM the same way you would by hand, only without the typing. After each call it waits a few seconds (the gap you set), shows a two-tap outcome sheet, then dials the next number. Busy and unanswered numbers can be retried automatically at the end of the list.
Which is the best auto dialer app for Android in India?
For small and mid-sized Indian teams the best fit is a SIM-based auto dialer that runs on the phones they already own, because customers answer normal mobile numbers and there is no per-minute bill. RMDialer, Runo, GoDial, Calley and NeoDove all offer this; they differ on whether a CRM, WhatsApp automation and team reports are included in the same price.
Can I auto dial numbers from an Excel sheet?
Yes. Save the sheet as Excel or CSV with a mobile number column (name and any other columns are optional), import it in the app, and start a session. The dialer calls the rows in order and lets you mark each outcome. The same works from a Google Sheet, which can also be connected as a live source so new rows import themselves.
What is a good gap between auto-dialled calls?
Five to ten seconds. That is enough to save the outcome of the last call and glance at the next lead's details without breaking rhythm. Set it longer, 15 to 20 seconds, for teams that write a proper remark after every call, and shorter for confirmation or reminder campaigns where the script is fixed.
What is the difference between a power dialer and a predictive dialer?
A power dialer calls one number at a time for one agent and waits for that call to end, so every answered call has a person ready. A predictive dialer calls several numbers at once and connects the ones that answer to whichever agent is free, which needs a call-centre server and causes dropped "silent" calls. Mobile auto dialers like RMDialer are power dialers on a SIM.
Can an auto dialer skip busy numbers and retry later?
Yes. When a number is busy, switched off or not answered, the session marks it and moves on. Those numbers are retried automatically at the end of the list, and anything still unreached stays in the list for the next session, so nobody has to re-import or re-sort the sheet.
Is an auto dialer legal in India?
Yes, for calling your own leads and customers. An auto dialer is only a faster way to place normal SIM calls, so the same rules apply as for manual calls: do not call numbers registered on the national DND list with promotional offers, honour opt-outs, and follow TRAI's rules for commercial communication. Calls to people who enquired with you, existing customers and service calls are routine.
Why do customers not answer calls from virtual numbers?
Because caller ID apps and phone dialers increasingly flag pooled virtual and VoIP numbers as spam or business calls, and because the same virtual number is often used for many campaigns. A real mobile number from a local SIM looks like a person calling, which is why SIM-based dialers report higher connect rates in India.
How many calls should a telecaller make per day?
Between 80 and 150 dialled calls a day is normal for outbound telecalling in India, which usually means 30 to 60 connected conversations. The number matters less than the connect rate and the outcomes saved after each call; an auto dialer removes the dead time between calls so the same person reaches the higher end without working longer.
How can I import leads from Facebook lead ads into a dialer?
Connect the ad account or the Google Sheet that Facebook writes leads into as a lead source. New rows are checked every few minutes, de-duplicated, tagged with the source and assigned to your team, so the enquiry is ringing on a rep's phone within minutes instead of waiting in a spreadsheet until someone exports it.
Can leads from JustDial and IndiaMART be called automatically?
Yes. Export or connect the portal's lead list (most portals email or expose leads by sheet or API), let the app import new enquiries on a schedule, and set the fresh leads to auto dial first. Speed to lead is what wins portal enquiries: the first supplier to call usually gets the order.
Customer reviews
What businesses say about RMDialer
Real businesses, real numbers: how owners and sales teams across India and 12+ countries use RMDialer every day.
Rated 4.9 by customers 5.0 on Google Play 1K+ downloads India + 12+ countries
“Telecaller app for Android that my staff actually use. Enquiry list is assigned to each telecaller, the auto dialer calls it from their own SIM, and test ride bookings come to me live. Punjabi interface for the girls at the desk. Price is honest, everything included, no per-user surprises.”
“We needed an auto dialer app that works on our own MTN and Airtel lines, not a call centre subscription in dollars. RMDialer runs on the phones my agents already have, dials the enquiry list, and the WhatsApp follow-up goes out after every call. Works even when the network drops and syncs later.”
GOGrace OkaforManaging director · Travel agencyLagos, Nigeria
“We looked for telecalling software for a nine-person loan team and every quote came with cloud seats and per-minute bills. RMDialer telecalling software runs on the callers' own Jio SIMs: the lead list dials itself, the remark goes on the number, and I get dials, connects and talk time per caller every evening. Cost is one flat price per user.”
KIKavita IyerOperations head · Loan DSAChennai
“Earlier I was dialling 80 to 100 portal leads a day by hand from Excel. With RMDialer auto dialer app I import the sheet, press start and it calls one by one from my own Jio SIM. Between calls I mark Interested or Site visit in two taps and the follow-up rings me on time. Closed 3 flats last month from leads I would have forgotten.”
“We tried two telecalling CRM software before this and my counsellors stopped filling them within a week. RMDialer is the phone app itself, so every admission enquiry gets logged whether they like it or not. The auto WhatsApp after call sends the fee structure by itself. I see all 4 counsellors' calls on the web CRM every evening.”
PNPriya NairOwner · Coaching instituteKochi
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