The WhatsApp CRM That Also Makes Calls — From the Same App
Most WhatsApp CRMs stop at chat. 3Sigma puts a full SIM-based dialer inside the same CRM — so your team calls leads, chats them on WhatsApp, and logs everything to one timeline.
The problem with WhatsApp-only CRMs
Most "WhatsApp CRMs" in India are really WhatsApp inboxes. They handle chats, broadcasts and chatbots — but when a lead needs a call, you switch to your phone, lose the context, and nothing gets logged. Indian leads close on calls just as often as on WhatsApp. A CRM that doesn't log both has a blind spot in your sales process.
Call and WhatsApp — one lead, one timeline
In 3Sigma, every call and every WhatsApp message lives on the same lead record. No switching apps, no missing context — your whole team sees the full picture.
Calling inside the CRM
- SIM-based auto-dialer — any network, dual-SIM, no per-minute cost
- Every call auto-logged — duration, outcome, notes, recording
- Crash-proof sessions — auto-resume if the app restarts mid-list
- After-call popup — status, label, follow-up scheduled in seconds
- Caller ID — see the lead name before you pick up an incoming call
WhatsApp inside the same CRM
- Shared team inbox — all chats assigned, filtered, actioned
- WhatsApp Coexistence — keep your existing number, sync history
- Broadcasts and drip sequences — follow up at scale
- No-code chatbots — qualify leads 24/7
- Per-lead WhatsApp chat log on the same timeline as calls
How the calling works
SIM-based auto-dialer
The Call Manager app dials leads back-to-back using the agent's own SIM — any Indian network (Airtel, Jio, Vi, BSNL), dual-SIM supported. No per-minute cloud cost. Make 3x more calls in a day.
100% auto-logged calls
Duration, outcome and notes are captured automatically on every call. No manual entry after each dial. The full call history is on the lead's timeline without lifting a finger.
Crash-proof sessions
If the app restarts mid-calling session — phone crash, OS restart, anything — 3Sigma picks up from the exact lead you were on. The session never gets lost.
After-call popup
When the call ends, a popup appears immediately: set the lead status and label, write notes, schedule the next follow-up (30 min / 1 hr / tomorrow or custom). Done in under 10 seconds.
Caller ID
Incoming calls show the lead name and recent history before you pick up — so you walk into every call knowing who it is and what was discussed.
Caller leaderboard
A leaderboard ranks each agent by total calls and talk time. Managers see who's making calls and who isn't — accountability without micromanagement.
See the full detail on the call management page.
How it looks in practice
Rohan, solar sales rep in Indore
An IndiaMart enquiry comes in. 3Sigma auto-assigns it to Rohan, who sends a WhatsApp template introducing the solar offer. The lead reads it but doesn't reply. Rohan opens the lead in 3Sigma, taps call — the call goes via his Jio SIM, logs automatically, and the after-call popup appears. He sets the status to "Interested", schedules a follow-up for tomorrow, and sends a WhatsApp message with the product brochure. All of this on the same lead record. His manager sees the whole sequence — call log and WhatsApp chat — without asking.
Priya, insurance agent in Bengaluru
Priya starts the auto-dialer on her list of 80 renewal leads. The app calls them back-to-back on her Airtel SIM. On each call she sets status and notes in the popup. Leads who don't pick up are queued for a WhatsApp follow-up message later in the day via automation. By afternoon, all 80 calls are done and logged — no spreadsheet, no manual entry.
After the call, automation takes over
3Sigma's automation engine triggers on call events — missed call, short call, status change after a call — and can automatically send a WhatsApp message, schedule a follow-up task, or add the lead to a drip sequence. The call doesn't end the conversation; it starts the follow-up.
Trigger on call outcome
Missed call → send WhatsApp. Short call → add to re-dial list. Interested status → start a 3-day follow-up sequence.
Auto WhatsApp after call
Send an instant WhatsApp message (template) the moment a call outcome is logged — no manual effort.
Multi-day sequences
Day 0 call task → Day 1 WhatsApp → Day 3 email → Day 7 follow-up call, all automated.
How 3Sigma compares
WhatsApp-only tools miss calls. Calling-only CRMs miss WhatsApp. 3Sigma does both.
| Capability | 3Sigma | WhatsApp-only CRM | Calling-only CRM |
|---|---|---|---|
| WhatsApp team inbox + broadcasts | |||
| WhatsApp chatbots | |||
| WhatsApp Coexistence (keep your number) | ~ | ||
| SIM-based auto-dialer | ~ | ||
| Every call auto-logged | |||
| Crash-proof calling sessions | ~ | ||
| Caller ID + after-call popup | ~ | ||
| Calls + WhatsApp on same lead timeline | |||
| Follow-up automation (call + WhatsApp) | ~ | ~ | |
| Quotation → invoice → orders | ~ | ||
| Mobile-first app | ~ | ~ |
~ = limited or partial. Reflects typical India market offerings; verify current features with each vendor.
More from 3Sigma
FAQs — WhatsApp CRM with Calling
Can a WhatsApp CRM also make calls?
Most WhatsApp CRMs are chat-only tools — they handle messages, broadcasts and chatbots but don't have a dialer. 3Sigma is different: it has a built-in SIM-based auto-dialer, one-tap calling, call recording, and full call logs — all inside the same CRM you use for WhatsApp.
Why do Indian sales teams need both WhatsApp and calling in one CRM?
In India, leads often need both channels — they might first enquire on WhatsApp, but close only after a call. If your WhatsApp inbox and your calling are in separate tools, you lose context: the agent who takes the call doesn't know what was said on WhatsApp. In 3Sigma, both the WhatsApp chat history and all call logs live on the same lead record.
What is SIM-based calling and why is it better for Indian teams?
SIM-based calling means the call goes through the agent's own SIM card on any Indian mobile network — Airtel, Jio, BSNL, Vi. There's no per-minute cloud telephony cost, it works on dual-SIM phones, and call quality is the same as a regular call. Cloud telephony is useful for masked or recorded lines, but for back-to-back dialling at scale, SIM calling is far more economical.
How does the auto-dialer work?
The 3Sigma auto-dialer (Call Manager app) calls leads on your list back-to-back. A countdown separates calls, the app advances automatically to the next lead, and if the app restarts mid-session, it picks up exactly where you left off. Every call — duration, outcome, notes — is logged automatically without you having to fill anything in.
What happens after each call?
As soon as a call ends, an after-call popup appears. You set the lead status and label, write quick notes, and schedule the next follow-up (30 min / 1 hr / tomorrow or a custom time) — all without leaving the app. The call becomes a fully logged, actioned CRM entry in seconds.
Can I follow up by WhatsApp after a call?
Yes — and this is the key advantage of having both in one CRM. After logging the call outcome, you can immediately send a WhatsApp message to the same lead, trigger an automated follow-up sequence, or schedule a WhatsApp message for a future time — all from within 3Sigma without switching apps.
The only WhatsApp CRM that also dials
Call your leads and chat them on WhatsApp — from the same CRM, on the same lead record, logged automatically. Trusted by 20,000+ Indian sales teams.
Or see auto dialer CRM · all-in-one CRM