Notes from the build.
Product thinking, engineering, and guides for operators who live on the phone.
What your own calls are telling you about your opener
Dials made and talk time never tell you which sentence to change. Here is the read that splits what is landing from what is backfiring, pairs each opener with the number you called from, and refuses to say anything until there are enough calls behind it.
How to turn the calls you already recorded into something useful
You have said the right thing on a call before and it is buried in a recording nobody will open again. Here is how those transcripts become knowledge that shows up mid call, what you have to approve first, and how the private parts stay private.
How to set up a cold calling system in one sitting
Every tool asks you to retype what is already on your website. Here is the setup that reads your own material first, shows you what it understood, and lets you correct it between calls instead of booking an onboarding session.
The number you call from, and what it does not promise
Local numbers, number labels, rotation and reveals, written without the claims this category usually makes. What Klesos hands you with every lead, what a direct line flag actually means, and why verifying your mobile does less than you think.
How Klesos and HubSpot fit together
What the HubSpot connection actually does after a call, what it asks permission for, what it refuses to do on its own, and the two settings that decide whether your dial queue knows about the accounts you already own.
How to build an ICP that survives real dials
Most ideal customer profiles are written once and never tested. Here is how to build one from a sentence, check it against real named companies before you dial, and keep fixing it between call blocks as your own list teaches you what is wrong with it.
What happens to a cold call after you hang up
The useful details from a call survive about ninety seconds before the next dial takes them. Here is how the wrap-up, the lead record and the follow-up email get written while the conversation is still fresh, and why you still have to press confirm.
How to review your own cold calls when nobody else will
Call review assumes a manager. If you are the only person dialing, here is how to get the same thing out of your own calls: a weekly focus with the reason behind it, a score you set the rules for, and a system that marks its own predictions.
Cold call compliance by country, and what a tool can honestly do about it
Disclosure rules change between countries, between US states, and again depending on whether the contact is cold or opted in. Here is what Klesos checks before a line opens, which of those checks genuinely stop a call, and where the obligation still sits with you.
How to practice cold calls without burning real leads
The only place most reps get to practise a cold call is on a real prospect, which means burning good leads to learn an opener. Practice in Klesos is a live voice drill against an AI prospect that pushes back and interrupts, running on the same coaching engine as a real call, with a score and a replay at the end.
How to fix a cold call script that stops working
You can tell a cold call is dying, but not which line is doing it. Here is how Klesos grades your script beat by beat, rewrites the weak line in place, and leaves the words yours to edit and roll back.
How to do pre-call research in under a minute
You have thirty seconds before you press call, and all you know is the company name. This is what Klesos puts on one page per lead, how you check where each fact came from, and what the research does not do.
How to build a cold call list without buying a data tool
You describe who you sell to in a sentence and Klesos runs the rest: it picks the source, removes anyone already in your CRM, screens out the bad fits, enriches what is missing and writes a script per lead. Here is what happens at every step, including the limits, whether the list comes off Google Maps or out of a spreadsheet you already have.
How to run a cold calling day without a phone system
You can sign up and dial your first list from a browser tab in the same sitting, with nothing installed. Here is what a full calling day looks like, from the time zone ordered queue at nine to the last callback you promised, including where parallel dialing stops for consent reasons.
What Klesos costs and what is free
Three real calls before any card, and a call only spends one if it connected and ran past ten seconds. Here is the rest of it: what the plan covers, what the ceiling does when you hit it, and what one dialing session actually cost you.
How live cold call coaching works on a real call
A cold call gives you about a second to answer an objection, and the best line you had usually arrives afterwards, in the car. Here is how live coaching moves the answer to the moment you need it, including the limits of it and the reason the AI never speaks to your prospect.
Klesos in the Speechmatics newsletter
Speechmatics featured Klesos in the "Powered by Speechmatics" section of Issue #11, the same issue that launched Melia, their new 55-language model. Speechmatics is the transcription layer the whole cockpit runs on.
Klesos in lablab's hackathon success stories
lablab.ai profiled the builders who won by making AI agents safer, and Klesos made the list. The angle they zeroed in on is the one we care most about: a human on every call, by design.
Why every cold call should make the next one better
Most cold-call tools help you call more. The real unlock is a closed loop: tag the outcome, the brain re-weights, and the playbook rewrites itself in about thirty seconds, so the next call starts ahead of the last one.
Vultr on Klesos: AI-assisted selling with humans in control
Vultr's writeup of the Milan AI Week hackathon named Klesos a standout winner and walked through how the cockpit is actually built, from the live coaching layer to the prompt-injection screen on every input.
The PII firewall: a shared sales brain that stays GDPR-compliant
A shared brain is only valuable if it is also safe. We split market pattern from prospect identity at the architecture level, using three PII-free shared brains, quarantined per-deal memory, and a prompt-injection screen that keeps planted names out.
Five ways to feed your sales brain
No rip-and-replace. Plug in what you already have: live calls, a pasted transcript, your Fireflies account, a folder of documents, or a single typed insight. All five on-ramps converge on one ingestion-to-extraction pipeline.
Stop calling more. Start calling better.
Describe your customer in one sentence. The agent sources the leads, writes the playbook, coaches you live, and gets sharper with every call.