Calling CRMCalling CRM: the SIM based auto dialer that calls from your own number
A SIM based auto dialer is a dialer that places list calls through the mobile SIM card already in the phone instead of a rented line. Calling CRM follows that model, which means the person you ring sees an everyday mobile number.
- No virtual number to rent
- Pick SIM 1 or SIM 2
- Dropped calls dialled again
What is a SIM based auto dialer?
A SIM based auto dialer rings a list of numbers through the phone’s own SIM card, with no cloud line. Calling CRM adds SIM choice and saved outcomes.
- Calls show the caller’s real mobile number
- On a two-SIM handset, sales calls can stay on the work card
- Weak-signal failures that never ring get another attempt on their own
SIM based auto dialer benefits
Why teams that sell by mobile phone prefer dialling from the SIM they already pay for.
Familiar caller number
Customers see a normal mobile number, often one they saved earlier.
Nothing extra to set up
No telephony account, no number porting, no desk hardware.
Network-drop recovery
Calls cut by the network before ringing are retried up to twice.
SIM name on every call
History shows which SIM each call used, older Android included.
Same dialer, any list
Leads, sheets, call-log numbers or today’s follow-ups.
How the SIM based auto dialer works in Calling CRM
The phone stays a phone. Calling CRM only decides which number rings next and from which SIM.
Set the business SIM
With two SIMs fitted, nominate the work card as the sales line, or decide on every call.
Start the list
The dialer rings each number through that SIM, one at a time, with your gap and ring limit.
Recover weak-signal calls
Signal lost before the first ring? The dialer quietly places that call again, at most twice.
SIM based auto dialer features table
What the SIM layer adds on top of the standard dialer.
| Feature | What it does | Best for |
|---|---|---|
| Own-SIM calling | Every dialled call uses the mobile SIM in the handset | Teams without a cloud line |
| Dual SIM choice | Pick the SIM per call or fix a default business SIM | One phone, two numbers |
| SIM name in history | Shows the right SIM on each call, older Android versions too | Owners checking usage |
| Network-drop redial | Retries calls dropped before ringing, up to 2 times | Patchy coverage areas |
| Call type learning | Learns handsets that label call directions with their own codes | Mixed handset fleets |
| No-answer redial | 1 to 3 retries for numbers that rang but were not picked up | Busy prospects |
SIM based auto dialer vs a cloud dialer
A cloud dialer routes calls through internet telephony and a rented number. That suits a desk team with headsets, but the customer sees an unfamiliar number and the business pays for a separate line. A SIM dialer simply uses the calling plan already on the phone.
Neither is better for every team. If your callers work from mobiles, travel between sites or already give customers their own numbers, the SIM route keeps things simple. The longer comparison sits in the SIM based calling vs cloud telephony guide.
SIM based auto dialer app on dual SIM phones
A common setup is one handset holding two cards, one private and one for the job. The work card can be locked in as the sales line, so the dialer never rings a prospect from a personal number by mistake.
Where a caller needs both, the SIM can be chosen call by call, and the history keeps the correct SIM name on every entry. Owners can also choose which SIMs are backed up, which keeps personal calls out of the business account.
SIM based auto dialer for Android when the network drops calls
- A call that fails before it rings is not counted against the lead.
- The app dials it again by itself, up to 2 times.
- Only after those tries does the lead count as not reached.
- Normal no-answer redial rules still apply after a call actually rings.
SIM based auto dialer example: a 3-person solar sales team in Nairobi
A rooftop solar installer in Nairobi has 3 sales callers, each with a dual SIM phone. Their business SIM is set as the default, and their personal SIM stays out of the backup.
On a Tuesday they dial 150 enquiries from a weekend roadshow. In two areas with weak signal, 12 calls drop before ringing; the app retries them automatically and 9 go through.
At the end of the day the owner sees every call tagged with the business SIM, and the personal SIM shows nothing in the team account.
SIM based auto dialer limits
Dialling from the phone’s SIM is not the right setup in every case.
- You need one shared number that rings on many desks or an IVR menu. That is cloud telephony.
- Your calling plan limits outgoing minutes and the team calls hundreds of numbers a day per phone.
- Calls must be placed from a computer headset rather than a phone.
- On iPhone the app cannot read the phone’s own call log, so check the iPhone page before choosing handsets.
SIM based auto dialer FAQ
What is a SIM-based call?
It is an ordinary mobile call carried by the operator’s network through the handset’s SIM card. It shows that SIM’s number and is billed to its plan, with no internet line in between.
What is the best SIM based auto dialer for a small team?
A good choice places calls on each person’s own card and records how every call ended on the lead. Calling CRM does that and adds dual SIM control and redial.
Is Calling CRM a SIM based auto dialer?
Yes. Calling CRM dials lead lists through the SIM card in each phone, with no virtual number involved.
Does a SIM based auto dialer need internet?
Not for the calls, which travel over the operator’s network. Data is only needed to keep leads and call results in step with the business account.
Can the SIM based auto dialer use the second SIM?
Yes. Either card can act as the business line, or you can switch SIMs from one call to the next.
What happens when the network drops an auto dialed call?
If the call drops before it rings, Calling CRM dials it again, up to two times, before marking the lead as not reached.
Will customers see my mobile number when the dialer calls?
Yes. The call goes out on the SIM in your phone, so the customer sees that SIM’s number.
Does the SIM based auto dialer show which SIM made each call?
Yes. Each entry in the history is labelled with the SIM that actually carried it, older Android versions included.
Can personal SIM calls stay out of the business account?
Yes. You choose which SIMs are backed up, so calls on a personal SIM do not reach the business account.
Is a SIM based auto dialer the same as a GSM alarm dialer?
No. A GSM alarm dialer is hardware that calls a few numbers when an alarm trips. A SIM based auto dialer app works through sales lead lists on a phone.
Does the SIM based auto dialer work on any Android phone?
It works on Android phones where Calling CRM is set as the phone app. It also learns call type codes on phones that use their own.
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