The blog

Tips, strategies and news about phone prospecting and B2B sales.

Everything you need to fill your calendar with meetings

Five VoIP call quality symptoms and their likely cause
VoIP

VoIP Call Quality Problems: Choppy Audio, Echo, Delay and How to Fix Them

Choppy audio, robotic voice, echo, delay, one-way audio, dropped calls: for each symptom, the likely cause, the test to run and the fix, from the headset to the router. With sourced thresholds, a ten-minute diagnosis and the report to send your provider.

By Charles Baldet 31 min read
Five settings that protect a business phone system against toll fraud
VoIP

VoIP Security and Toll Fraud: 6 Attacks and the 12 Settings That Stop Them

A phone account hacked on a Friday night can place premium-rate calls until Monday morning, and the bill lands on you. This guide covers the six frauds that target a business phone system, the twelve settings that stop them, and what to do in the first hour if your line has been hacked.

By Charles Baldet 28 min read
How a browser call reaches a phone number: microphone, browser, WebRTC, SIP gateway, phone network
VoIP

VoIP vs WebRTC: What's the Difference, and How Browser Calling Reaches a Phone

VoIP and WebRTC are not competing options: VoIP is the family of technologies that carries voice over the internet, and WebRTC is the standard that lets a browser join that family with nothing to install. This guide explains what each term covers, how a call placed from Chrome or Safari reaches a real phone number, which codecs and encryption apply, what it changes for a business, and when a SIP desk phone is still the better choice.

By Charles Baldet 29 min read
Apollo.io

Apollo Dialer in 2026: What It Includes, What It Costs, Where It Stops

Apollo.io ships a dialer with its paid plans, but power dialing, parallel dialing, international calls and local presence sit behind a team add-on, and every connected minute uses credits. What each plan includes, how calls are billed, the countries and numbers, and when a dedicated dialer makes more sense. Information checked on November 6, 2026.

By Charles Baldet 22 min read
Cold calling

From Buying Signals to Today's Call List: Who to Call First, and Why

The six buying signals that justify a cold call, where to find each one, and a simple scoring model (signal × number type × local time slot) to turn them into a call list you can dial within the hour.

By Charles Baldet 25 min read
Clay

Clay Phone Enrichment: Which Providers to Waterfall, What Each Number Costs, and How to Send the List to a Dialer

A phone waterfall in Clay is only as good as its order, its cost per number found and what happens after the last column. Here is the provider order by region from Clay's own 9,806-number test, the real cost per mobile with Clay credits or your own API keys, the columns to clean, and how to push the result into a dialer.

By Charles Baldet 25 min read

The Construction Sales Stack in 2026: The Tool Map for Selling to Contractors, Builders and Specifiers

Project leads, estimating, construction CRM, specification, calling, bid management, quotes and project delivery: eleven categories of tools and where each one fits in the day of a construction sales rep, in the US, the UK and beyond.

By Charles Baldet 28 min read
CRM

Does Your CRM's Built-In Enrichment Give You Mobile Numbers?

HubSpot, Salesforce, Pipedrive, Attio, Zoho and monday CRM all promise to fill your records automatically. We checked their documentation field by field: what each one enriches, whether a phone number comes back, whether it is a mobile or a switchboard, and what it costs.

By Charles Baldet 23 min read
Cold calling

Direct Dial, Mobile or Switchboard: What Each Number Type Really Connects

What a direct dial, a mobile, a switchboard and a VoIP number are, how to spot each one in an Apollo, Lusha or ZoomInfo export, and the connect rates published for each type, with their sources and their limits.

By Charles Baldet 20 min read
Recruiting

How to Find a Passive Candidate's Phone Number, and Qualify It Before You Call

Passive candidates rarely answer InMails, so recruiters go looking for a mobile number. Where those numbers come from, which recruiter tools find them (prices checked on November 6, 2026), what GDPR and the TCPA allow, and how to qualify a number before you dial.

By Charles Baldet 21 min read

How to Find a Cell Phone Number by Name: 12 B2B Methods (2026)

You have a prospect's name and company, but no number they actually pick up. Twelve methods, six free and six paid, ranked by what happens when you dial, then how to verify the number and the TCPA, PECR and GDPR rules that apply in 2026.

By Charles Baldet 31 min read
Contact data

Free B2B Phone Numbers in 2026: What Each Free Plan Really Gives You

Lusha, Apollo, Kaspr, Surfe, Datagma, Prospeo, Wiza and a dozen more advertise free phone numbers. We checked every free plan and trial on November 6, 2026: how many mobiles you really get, what you can export, and when paying becomes cheaper than searching.

By Charles Baldet 25 min read