Auto Dialer CRM for Indian Sales Teams — SIM-Based, Crash-Proof, 100% Auto-Logged
Call your lead list back-to-back on your own SIM — any Indian network, dual-SIM supported, no per-minute cost. Every call logged automatically. Sessions resume if the app restarts.
What makes this different
Most CRMs with a "dialer" use cloud telephony — calls go through an internet server and cost per minute. 3Sigma's auto-dialer uses the agent's own SIM card on any Indian mobile network. No per-minute charge beyond the regular plan, works on Jio / Airtel / Vi / BSNL, supports dual-SIM, and the session is crash-proof — it resumes from the exact lead if the app restarts.
How the 3Sigma auto-dialer works
Open a list, start the session
Open any lead list in the Call Manager app — your IndiaMart leads, a filtered list of 'Interested' leads, or a fresh import. Tap Start. The dialer begins.
Back-to-back calls on your SIM
The app calls each lead on your SIM card. A countdown appears between calls (configurable). The next lead loads automatically — no manual dialling.
After-call popup — 10 seconds to log
When the call ends, a popup appears: set the status (Interested / Not Interested / Call Back / etc.), add a label, write quick notes, and schedule the next follow-up. Done.
Crash-proof — resume where you left off
If the phone restarts or the app closes mid-session, 3Sigma saves the session server-side. Reopen the app and pick up from the exact lead you were on.
100% auto-logged — without lifting a finger
Every call is logged to the lead's timeline automatically — no spreadsheet update, no manual call entry. 3Sigma captures:
All of this flows into the call management dashboard — where managers see call logs, talk time per rep, and the caller leaderboard.
Who uses the auto-dialer
Vikram, manufacturer in Rajkot — 200 IndiaMart enquiries a month
Vikram's team gets 200+ IndiaMart enquiries every month from buyers across India. Without a dialer, they'd spend hours a day just dialling and updating a spreadsheet. With 3Sigma's auto-dialer, they run through the list in the morning — calls logged, statuses updated — and spend the rest of the day on warm leads. The IndiaMart integration pulls every enquiry straight into 3Sigma, ready to dial.
Ananya, team lead in Hyderabad — 50-agent telecalling floor
Ananya manages a telecalling team of 50 agents. The caller leaderboard shows exactly who's making calls and who isn't — without listening in on anyone. Sessions are crash-proof, so an agent's morning session continues after a phone restart without losing their place. Call recordings attach to each lead for quality checks.
Meera, loan DSA in Mumbai — 60 new leads every week
Meera's leads come from Facebook Lead Ads and JustDial. She auto-dials each new lead the same morning it arrives — before a competitor calls. The after-call popup logs the status and schedules follow-up for document collection. The whole process takes one hour instead of half a day.
SIM calling vs cloud telephony
3Sigma supports both — here's how to think about the choice.
| Feature | SIM-based (3Sigma auto-dialer) | Cloud telephony |
|---|---|---|
| Per-minute cost | No — uses your existing plan | Yes — charged per minute |
| Works on any Indian network | ||
| Dual-SIM support | N/A | |
| Crash-proof session continuity | ~ | |
| Masked / org number shown | ||
| Call recording | Depends on device/OS | |
| Back-to-back auto-dialing | ~ | |
| Best for | High-volume SIM dialling at scale | Masked calls, recording priority |
~ = available in some plans or with configuration. Verify with your cloud telephony provider.
Plus WhatsApp in the same CRM
The auto-dialer doesn't stand alone. 3Sigma is a WhatsApp CRM with calling — so the same lead who got a call also gets a WhatsApp follow-up, a quotation, and ends up in your pipeline. Call logs and WhatsApp messages both appear on the same lead timeline.
WhatsApp after the call
Trigger a WhatsApp message automatically when a call outcome is logged — follow-up without manual effort.
Lead management
Filter, sort and assign leads before starting a dialing session. Focus on the hottest leads first.
Reports & leaderboard
Call log reports, talk time per agent, leaderboard, and source-wise conversion analysis.
Auto Dialer CRM — FAQs
What is a SIM-based auto dialer CRM?
A SIM-based auto dialer CRM lets your sales team call leads back-to-back using their own mobile SIM card — Jio, Airtel, Vi or BSNL — with no per-minute cloud telephony charges. Calls are made on the agent's phone just like a regular call, but the CRM manages the list, the session, the countdown between calls, and logs every outcome automatically.
How is SIM-based calling different from cloud telephony?
Cloud telephony (like Exotel or Aircall) routes calls through internet-based servers — useful for masked numbers and call recording. SIM calling routes through the mobile network directly. For back-to-back dialling at scale, SIM calling is more economical because there's no per-minute cost beyond your regular plan. 3Sigma supports both: SIM auto-dialer via the Call Manager app, and click-to-call via cloud telephony providers like Acefone or CallerDesk.
What happens if the app restarts during a calling session?
3Sigma's auto-dialer sessions are crash-proof. The session state is saved server-side, so if the app restarts — phone restart, OS crash, or anything else — the dialer resumes from the exact lead where you left off. You don't lose your place in the list.
Are calls logged automatically?
Yes — every call is 100% auto-logged: duration, call direction (incoming/outgoing/missed), the SIM or carrier used, and the call recording if enabled. After each call, an after-call popup prompts for a status, label and quick notes. Everything goes to the lead's timeline without manual entry.
Who is the auto dialer CRM built for?
Any Indian sales team that calls a lot of leads — telecalling teams, loan DSA agents, insurance advisors, solar sales reps, real-estate agents and anyone who follows up with large lead lists from IndiaMart, JustDial or Facebook ads. If your team calls more than 20-30 leads a day, the auto-dialer saves significant time.
Can I use the auto dialer on a dual-SIM phone?
Yes. 3Sigma's SIM-based auto-dialer supports dual-SIM phones. You choose which SIM to use for the calling session, and the dialer uses that SIM for all calls in the session.
Make 3x more calls with the same team
SIM-based auto-dialer, 100% auto-logged calls, crash-proof sessions — inside a full WhatsApp CRM trusted by 20,000+ Indian sales teams.
Or see WhatsApp CRM with calling · call management