A SIM based telecalling CRM is calling software that places every call through the SIM card in the caller's phone rather than over the internet. Telodial works this way, so customers see an ordinary mobile number and the calls stay on the plan you already pay for.
Nothing to rent, no IVR menu, no VoIP login and no telephony bill by the minute. A customer who rings the number back reaches the same person who called.
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A SIM based telecalling CRM is a calling app that dials through the phone's own SIM card, so every call is an ordinary mobile call.
Telodial is one: it can replace the phone's default dialer, shows your own lead details when a customer rings, and saves each call's outcome in two taps.
Telodial is a SIM based telecalling CRM: every call leaves through the SIM card already in the caller's phone, on that number and its existing plan, so there is no virtual number to rent, no IVR to design, no VoIP account and no per-minute invoice from a second vendor. On a dual-SIM handset one SIM can be fixed as the work line, or the caller can choose before each call, and since the 14 October 2026 update the history labels every call with the right SIM. Telodial can take over as the default dialer, so when a known customer rings, their name, lead stage and latest remark fill the screen, locked or not; teams that would rather keep their usual dialer run CRM team mode beside it. The trade-off is plain: one SIM carries one call at a time, which suits teams of about two to fifty working their own enquiries rather than a large floor dialing cold lists.
A number the customer has never seen, sometimes flagged by caller-ID apps, is the call people let ring out. Every unanswered ring is paid time producing nothing.
The call arrives from an ordinary mobile number, which can be saved and returned like any personal contact.
Per-minute rates, number rental and top-ups turn calling into a variable cost that is hard to forecast in a busy month.
Calls are billed on the mobile plan each SIM already carries, so a heavier month does not produce a bigger telephony invoice.
Provisioning numbers, drawing an IVR tree and waiting on a vendor can take weeks before the first customer is dialed.
Install the app, sign in, import a list and call the same day. The phone is the whole infrastructure.
No new handset, number or porting. Telodial installs on the caller's phone, Android or iPhone, and calls through the SIM already inside it.
As the default dialer, incoming calls show your own record of the caller, and the outcome sheet opens after every work call, including those dialled by hand. CRM team mode keeps the phone's own dialer and still opens the sheet after each call.
On a dual-SIM phone, choose a SIM per call or set one as the default for business, so work and personal calls stay on separate numbers and separate bills.
The telephony here is the phone itself, which is why this list is short. Most of what a cloud setup adds, SIM calling simply does not need.
| Point | SIM based (Telodial) | Cloud telephony |
|---|---|---|
| Caller ID shown to the customer | The mobile number in the caller's phone | A rented virtual number |
| Calling cost | The SIM's existing mobile plan | Usually per-minute rates plus number rental |
| Setup | Install the app and sign in | Numbers, routing and often an IVR to configure |
| Calls per agent at once | One per SIM | Several, with predictive dialing |
| Internet for the call itself | Not needed, it uses the mobile network | Usually needed for app or browser calling |
| Central call recording | No: the phone's own recordings are imported | Usually built in |
Telodial column from the Telodial feature list of 14 October 2026. The cloud column describes the category in general; check any provider's own pricing and feature pages.
Take Thabo, who manages eight insurance callers in Johannesburg working renewal and enquiry lists on a cloud dialer with rented numbers. The desk makes about 800 calls a day.
On the cloud setup every connected minute is billed on top of the software, so a busy renewal month costs more than a quiet one. After the move each caller uses a work SIM on a plan with a fixed monthly bundle, and the calling cost stops rising and falling with volume. Eight Telodial seats on yearly billing come to $248 a year in software.
The bigger change is who picks up. Customers see a mobile number they can save, and when they ring back a week later they reach the same caller instead of a queue. Thabo gives up parallel lines, which for eight people calling their own policyholders was never the limit.
A worked illustration with round numbers, not a customer record.
When you need many lines per agent. One SIM carries one call, so a contact centre of fifty or more seats running cold outbound campaigns will reach more people per hour on a cloud platform that dials predictively, and Telodial does not. The same goes for IVR menus on inbound calls or central recording of every call: Telodial has no IVR and imports only the recordings the phone itself makes. Calling and recording law varies from one country to the next, so confirm yours before you start.
Works with the rest of Telodial
Where up to fifty callers want each customer to see a genuine mobile number on screen, the best SIM based telecalling CRM is Telodial: dialer, after-call sheet and owner's view all run on handsets and SIMs the team already owns. Bigger floors dialing cold lists should compare cloud dialers.
Telodial is a SIM based telecalling CRM whose calls go out over the SIM card inside each caller's handset, with no virtual number to rent and no per-minute bill, while an after-call sheet keeps the result of each one.
You pay for the software only. One user on yearly billing is ₹2,112 (that is ₹176 a month; $31 outside India), and the three-month plan is ₹891 per user per quarter, with taxes added to both. The calls stay on the bill your mobile operator already sends, with nothing per minute from Telodial.
A cloud dialer calls over the internet from a rented virtual number and charges per minute. A SIM based dialer calls over the mobile network from the SIM in the phone, on your own number and plan. The first scales to many lines per agent; the second tends to be answered more readily and adds nothing per call.
The calls do, because they use the mobile network rather than data. Syncing records to the company account needs a connection; the background sync keeps a log, retries what failed, and sends everything across when data returns.
No, though many teams give each caller a work SIM. That way customers who ring back reach the right person, and business calls sit on their own bill.
Yes. Telodial's auto dialer works through the same SIM, going down a list one call at a time and redialling unanswered or network-dropped calls. It does not open parallel lines, because a SIM carries one call.
Yes. Fix one SIM as the work default or choose it call by call, decide which SIMs back up to the account, and every entry in the history carries the right SIM name.
Yes, and they reach the same person, because the call came from that caller's own mobile number. If the caller misses the return call, a notification offers a one-tap call-back with a choice of SIM, or a WhatsApp reply.
Yes: each caller needs a phone and a SIM, and the owner's account handles the rest. At that size, check whether your calling is cold outbound; if it is, compare predictive cloud tools before deciding.
No. Numbers stay exactly where they are; Telodial uses whatever SIM is already in the phone, on its current operator and plan.
Set a default business SIM on that phone and work calls go out on it automatically. On a dual-SIM handset the caller can still pick a SIM for an individual call when needed.
The case against SIM calling is real: each SIM can hold only one call at once. A cloud platform can open several lines per agent and connect whoever answers, which on a large floor dialing cold lists produces more conversations an hour. At fifty or a hundred seats doing that kind of work, the arithmetic favours the cloud.
For a desk of between two and fifty people ringing enquiries it generated itself, being answered is the constraint, not dialing speed. A number that reads as a call centre is skipped by the very people you want to reach, and no dialing rate makes up for a conversation that never starts. A mobile number gets saved, returned and trusted.
The costs differ just as sharply. Cloud calling adds rentals and per-minute fees, so the bill rises with the work. SIM calling keeps the calls on the existing mobile plan and turns the software into a fixed cost per caller. That predictability, and starting on Monday rather than after a provisioning project, usually decides it.
Give the team a phone that keeps the record
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₹176 per user per month on yearly billing. Every feature in one plan. Prices are per user, exclusive of taxes.