What is the best Chrome extension for business calls?

The g100.us Chrome extension is built specifically for this: it gives you a real business phone number in 100+ countries and lets you make and receive calls, SMS, and WhatsApp messages directly from your browser. Unlike single-purpose dialers, it handles all three channels on one number, activates instantly, and costs a flat low price with no contract.

Do I need a separate app to make business calls from Chrome?

No. With the g100.us Chrome extension, calling, texting, and WhatsApp all run from the browser on one number, so there's no separate desktop softphone or physical phone needed. If you also want to take calls on the go, the ChatLine mobile app for Android and iOS uses the same number and account.

How much does a g100.us business number cost?

g100.us numbers use flat, low pricing — roughly $4 a week or $6 a month, similar across most countries. You can pay as you go from a wallet with no contract, or choose a 3-, 6-, or 12-month term if you want a dedicated long-term number. There are no per-seat enterprise fees.

Can I get a US phone number if I'm outside the US?

Yes. g100.us issues US numbers that work from anywhere in the world — India, the UK, the UAE, Canada, and more — so you can have a US presence without being physically based there. The same applies in reverse: you can pick a number from any of the 100+ supported countries regardless of where you're located.

Does the g100.us extension support WhatsApp?

Yes. Any g100.us number can be connected to WhatsApp with one-click setup, so the same business number handles calls, SMS, and WhatsApp messages together instead of requiring a separate WhatsApp Business line or a different provider.

How fast can I start using my number?

Numbers on g100.us activate instantly — you can be calling or texting within seconds of signing up. There's no waiting period, porting delay, or manual verification step before the number goes live, which is a common holdup with traditional carriers and enterprise VoIP setups.

Will this keep my personal phone number private?

Yes. The entire point of the g100.us Chrome extension is to give you a dedicated professional number for calls, texts, and WhatsApp, so you never have to hand out your personal cell number to customers, leads, or vendors.

Can I receive SMS and OTP codes on a g100.us number?

Yes. g100.us numbers receive SMS and OTP or verification codes instantly, which makes them useful not just for customer communication but also for verifying accounts and services that require a working phone number.

How is g100.us different from enterprise VoIP phone systems?

Enterprise VoIP platforms typically involve per-seat licensing, sales calls, and multi-year contracts aimed at large call centers. g100.us is self-serve: you sign up, choose a number, and start calling in minutes, with flat pay-as-you-go pricing instead of enterprise quotes — better suited to freelancers, small teams, and startups.

Is there a long-term contract with g100.us?

No long-term contract is required. You can use a pay-as-you-go wallet and top up as needed, or choose a 3-, 6-, or 12-month term if you prefer to lock in a dedicated number for longer. Either way, there are no enterprise-style multi-year commitments.

Can my whole team use g100.us for business calls?

Yes. Because g100.us numbers are managed from a central dashboard at app.g100.us, teams can set up multiple numbers for different team members or departments, each usable from the Chrome extension or the ChatLine mobile app, without per-seat enterprise pricing.

What's the difference between the g100.us Chrome extension and the ChatLine mobile app?

They're two access points for the same number and account. The Chrome extension lets you call and text from your browser on desktop, while ChatLine (Android and iOS) lets you use the same number on your phone. You can switch between them freely since everything syncs through your g100.us account.

Chrome Extension for Business Calls: g100.us vs the Rest

The best Chrome extension for business calls is one that turns your browser into a full business phone line — calls, texts, and WhatsApp, on a real business number, with nothing to install and nothing to configure. That's exactly what the g100.us Chrome extension does: pick a number from 100+ countries, click "Add to Chrome," and you're making and receiving business calls from your browser in minutes.

If you're comparing options — a browser extension versus a SIM card, a softphone, an enterprise VoIP suite, or another calling add-on — this guide breaks down exactly how they stack up and why g100.us is the simplest, cheapest, and most complete way to run business calls from Chrome.

What a Chrome Extension for Business Calls Actually Needs to Do

Not every "calling extension" is built the same. Before picking one, it helps to know what actually matters:

A real, dedicated business number — not your personal cell number exposed to every customer.
Calls and texting in one place — switching apps to text a lead back is friction you don't need.
WhatsApp support — for many customers and international contacts, WhatsApp is the default channel.
No hardware, no desk phone, no SIM swapping — everything should run from the tab you already have open.
Fast, low-commitment pricing — you shouldn't need a sales call or a 12-month contract just to get one number.

Most tools on the market satisfy one or two of these. g100.us was built to satisfy all five.

Meet the g100.us Chrome Extension

The g100.us Chrome extension lets you make and receive calls and texts directly from your browser, on a business number that's separate from your personal line. It's powered by the same g100 dashboard (app.g100.us) that manages your numbers, so whatever you set up on the web works instantly in the extension.

What you get out of the box

A business phone number in 100+ countries — including US numbers usable from anywhere in the world, whether you're in India, the UK, the UAE, Canada, or elsewhere.
One number that handles calls, SMS, and WhatsApp — no juggling three different apps or three different numbers.
Instant SMS and OTP delivery, so verification codes and customer texts land the moment they're sent.
One-click WhatsApp connection for the same number.
Instant activation — your number is live within seconds of signing up, no waiting period.
A companion mobile app (ChatLine) for Android and iOS, so the same number follows you off the browser too.

Because the extension and the dashboard share the same account, you can start a conversation on your laptop and pick it up later from your phone without missing anything.

How g100.us Compares to Other Ways to Make Business Calls

Here's how a browser-based, all-in-one number from g100.us stacks up against the usual alternatives businesses reach for.

g100.us vs. a second SIM card

A second SIM keeps your personal number private, but it means carrying a second device or juggling dual-SIM settings, paying a local carrier plan, and losing the number the moment you travel or switch countries. The g100.us Chrome extension gives you the same privacy — your real number never gets shared — without any physical hardware, and the number works the same whether you're at your desk or on the other side of the world.

g100.us vs. traditional enterprise VoIP

Legacy business phone systems are typically built around per-seat licensing, multi-year contracts, and onboarding calls before you can dial your first number. That model makes sense for a 500-person call center; it's overkill for a founder, freelancer, sales rep, or small team that just needs a working business line today. g100.us skips the sales process entirely: sign up, pick a number, start calling — with flat, low pricing instead of enterprise quotes.

g100.us vs. single-purpose calling or texting extensions

Many Chrome extensions handle only calls, or only SMS, or only act as a dialer for an existing VoIP account — meaning you still need separate tools for texting and WhatsApp. g100.us combines all three channels on one number and one dashboard, so there's nothing extra to wire together and nothing extra to pay for.

Quick comparison at a glance

Setup time: g100.us — minutes, self-serve. Legacy VoIP — often days, with onboarding calls.
Channels on one number: g100.us — calls, SMS, and WhatsApp. Most alternatives — calls only, or calls plus SMS at best.
Pricing model: g100.us — flat pay-as-you-go from about $4/week or $6/month per number. Legacy providers — per-seat or enterprise pricing, often opaque.
Contracts: g100.us — none required; use a wallet and pay as you go, or lock in a 3-, 6-, or 12-month term for a long-term number. Traditional carriers and enterprise VoIP — frequently locked into annual agreements.
Country coverage: g100.us — 100+ countries, including US numbers usable globally. Second SIMs — tied to one country and one carrier.
Access: g100.us — Chrome extension plus the ChatLine mobile app. A physical SIM — one device only.

Why the Pricing Makes the Decision Easy

Cost is usually where the comparison ends. Enterprise VoIP and legacy business lines tend to charge per seat, per feature, or per line — which adds up fast for a team of one to five people. g100.us flips that: numbers start from roughly $4 a week or $6 a month, broadly consistent across countries, with a simple wallet you top up as needed. Want a number for a single outbound campaign? Use pay-as-you-go. Want to hold onto a number long-term? Lock in a 3-, 6-, or 12-month term. Either way, there's no enterprise sales process and no surprise per-seat invoice.

Who the g100.us Extension Is Built For

Freelancers and consultants who want a professional number without exposing a personal one.
Remote and distributed teams who need a US or local number that isn't tied to any one country's SIM.
Sales and support reps who live in the browser all day and don't want to switch to a phone app to call or text a lead.
Founders and small businesses that need calls, SMS, and WhatsApp working together without an IT setup project.
Digital nomads and international workers who need a number that keeps working no matter which country they're in.

Getting Started

Setting up the g100.us Chrome extension takes three steps: create an account at g100.us, choose a number from any of the 100+ supported countries, and add the extension to Chrome. The number activates instantly, so the first call or text can go out the same minute you sign up. From there, connect WhatsApp with one click if you want that channel too, and install the ChatLine mobile app if you want the same number available off your laptop.

The Bottom Line

If the goal is a Chrome extension for business calls that actually replaces a phone system — not just a dialer — g100.us is the more complete choice. It bundles calls, SMS, and WhatsApp onto one number, activates instantly, covers 100+ countries, and charges flat, low, contract-free pricing instead of enterprise quotes. For anyone comparing browser-based calling tools, that combination is hard to match. Start at g100.us and have a working business number in your browser within minutes.