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Glossary · Dialing

Auto redial

Auto redial is a phone feature or app that calls the same busy number again and again until someone answers, as with railway counters, customer care and booking lines. Different job from an auto dialer, which works through a list of different numbers.

Definitions checked 2 September 2026.

Want an app that does it for you? RMDialer has Auto redial built in, free, with the number of tries, the gap and the ring time in your hands: see the auto redial app page.

Calling a list of different numbers instead of one busy line? That is an auto dialer app, which rings each number once and moves to the next.

How do you turn on automatic redial?

Two ways on Android. Some phone apps have an Auto redial switch in their call settings that retries a busy number a few times. Or install RMDialer, open the number’s Call Details, tap the ⋮ menu and choose Auto redial: pick 3, 5 or 10 tries, a gap of 10, 20 or 30 seconds and how long each try rings, then start. It stops by itself the moment the call is answered.

Auto redial meaning and automatic redial meaning

Auto redial means your phone calls the same number again by itself when the line is busy or nobody picks up, so you do not have to keep pressing call. Automatic redial is the same thing under its longer name, the one phone settings menus tend to use. Each repeat attempt is an auto redial call, and the phone keeps placing them until someone answers or the number of tries runs out.

What does "Redial automatically if the line is busy" mean?

It is a switch in the call settings of some Android phone apps. Turn it on and, when a number gives the busy tone, the phone waits a few seconds and dials it again by itself, a few times over. In Hindi it simply means: लाइन बिज़ी हो तो फ़ोन अपने आप दोबारा कॉल करेगा. If your phone does not have the switch, an auto redial app gives you the same thing with your own number of tries.

Auto radial, auto redail and autoredial: the same auto redial

Auto radial and auto redail are common typing slips for auto redial, and autoredial is the same word written as one. An auto redialer, or re dialer, is the app or setting that does the redialling. Whichever spelling brought you here, the meaning is the one above: one number, called again and again until the line connects.

Auto redial solves one problem: a number that is engaged. The app dials it, hears the busy tone, waits a few seconds, and dials again, for as many attempts as you allow, until the line connects. People use it for railway enquiry lines, customer care queues, ticket counters and any number that is permanently busy. It is a single-number tool and it does its one job well.

The name collides with auto dialer in search results and in app store listings, and the two are opposites in shape. Auto redial hammers one number; an auto dialer moves through a list of different numbers, calling each once and retrying the busy ones later in the session rather than immediately. A telecaller who installs an auto redial app expecting to work a lead list will find a tool that calls the first lead thirty times.

RMDialer, which we make, does both jobs in one app. Auto redial works on one number from its Call Details screen and stops as soon as someone picks up, which is how the app knows the difference between a busy tone and a conversation: it reads the phone’s call log after each try. The auto dialer works on a list, and its "Call again if not answered" setting brings back the numbers that did not pick up, right away, after a few minutes or after the list. The linked post untangles the two ideas for anyone who arrived at the wrong one.

Same words, opposite tools →

Auto redial and related telecalling terms, with what each one means
Term What it means
Auto redial A phone feature or app that calls the SAME busy number again and again until someone answers (railway counters, customer care, booking lines). Different job from an auto dialer, which works through a list of different numbers.
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.
Dial gap The configured pause between one call ending and the next dialing in an auto-dial session: 6-10 seconds for real selling, enough to save the outcome and breathe.
From the term to the tool

Can you try auto redial in RMDialer for free?

A definition is easier to hold once you have watched it happen on a real call. The dialer is free for good and needs no account, so reading about the term and trying it are about a minute apart.

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  • The customer record: lead status and remarks saved against every call
  • Follow-up reminders that ring like an alarm on the day you set
  • Auto dialing a whole list without touching the phone
  • Your team: seats, assigned calling lists and per-person reports
  • Automatic WhatsApp after calls, bulk sending and the WhatsApp API inbox
  • Backup and restore, so a new phone carries on where the old one stopped
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Questions

What do people ask about auto redial?

Can an auto redial app dial a list of numbers?

No. Auto redial repeats one number until it connects. To call through a list you need an auto dialer, which calls each number once and moves to the next.

Does an auto dialer redial busy numbers?

RMDialer’s does if you ask it to. In the auto dialer settings, "Call again if not answered" retries unanswered numbers one to three more times, right away, after 5 to 30 minutes, or after the rest of the list, and it can also retry calls that were answered but cut short.

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?

Yes. There is an iPhone app as well as the Android one, and it carries every feature except the native call log: leads, statuses, remarks, follow-up reminders, WhatsApp, templates, clients and team sync all work on iOS. Apple opens the call log to no app, so calls made on an iPhone are not recorded into the history by themselves, and only Android lets RMDialer become the phone app that answers with the customer on screen. The iPhone app is free on the App Store for iOS 17 or newer. The Web CRM works in any browser, including Safari.

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. Numbers that did not answer can be rung again in a fresh session later.

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 is that kind: the dialer is the phone app, the lead CRM, WhatsApp automation and team reports are in the same price, and the basic dialer is free with no login.

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?

In RMDialer the caller can skip any number during a session. For retries, switch on Call again if not answered: each missed person gets a limited number of extra rings at a pause you pick, without holding up the rest of the list. You can also filter the busy and unanswered numbers and start a fresh session later, ideally at a different hour, without re-importing 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?

Set the target from your own first week rather than a number from elsewhere: count dials, connected calls and saved outcomes per person, then raise it gradually. Connected conversations and outcomes matter more than dials. An auto dialer removes the dead time between calls, finding the number and typing notes, so the same person reaches more people without working longer.

How can I import leads from Facebook lead ads into a dialer?

Connect the Google Sheet that Facebook writes leads into as a lead source. Rows are checked on a schedule you set, every 30 minutes by default, then de-duplicated and tagged with the source, so the enquiry reaches a rep's calling queue the same hour instead of waiting in a spreadsheet until someone exports it. Connect the same sheet under Live Sheets in the Web CRM to share new rows across your callers in turn.

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

RMDialer reviews from business users

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  • “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.”
    Harpreet Singh Owner · Two-wheeler showroom Ludhiana
  • “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. Calls still go out on the SIM when data drops, and the notes sync once we are back on the network.”
    Grace Okafor Managing director · Travel agency Lagos, 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.”
    Kavita Iyer Operations head · Loan DSA Chennai
  • “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.”
    Rakesh Choudhary Real estate consultant · Property advisory Jaipur
  • “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.”
    Priya Nair Owner · Coaching institute Kochi

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