Switching to g100.us sounds like the kind of chore you keep pushing to next quarter, but the truth is it takes an afternoon, not a weekend. If you have been running your business off a personal SIM, a landline you can’t answer from home, or a tangle of forwarding rules that drop calls, moving to a single virtual number that handles voice, SMS, WhatsApp verification and OTPs is the cleanest upgrade you can make. This guide walks you through it step by step, with no jargon and no surprises.
Before you begin: what switching to g100.us actually changes
The short version is that you stop juggling. One number does your calls, your texts, your WhatsApp Business verification and the OTP codes customers need to log in or check out. There is no SIM to order and no technician visit.
The number goes live in seconds, and you answer it from your browser or the Chrome extension, so your laptop becomes your phone. Your personal SIM stays private, and the business line is the only one you hand out.
What you’ll need first
- A rough idea of which country code you want to show callers (you can pick numbers in many countries).
- Any existing business contacts, email signatures and profiles you’ll want to update.
- Ten minutes to test the line before you announce it.
The step-by-step guide to switching to g100.us
- Sign up and open the dashboard. Create your account at g100.us. The dashboard is where you’ll buy, manage and later release numbers, so get comfortable with it first.
- Pick your number and country. Choose a local-looking number in whatever market you serve. A London customer trusts a London number; a US client trusts a US one. Multi-country choice means you look local anywhere.
- Activate instantly. The number is live in seconds. No waiting for a SIM in the post, no porting queue on day one.
- Make a test call and send a test text. Ring it from another phone. Send an SMS. Confirm the audio is clean and the message lands. This two-minute check saves you embarrassment later.
- Verify WhatsApp Business. Use your new number to receive the WhatsApp verification code and set up your Business profile. Because delivery is reliable, the code arrives without the usual recycled-number headaches.
- Install the Chrome extension. Pin it to your toolbar so calls and SMS are one click away while you work. No app-switching, no phone in hand.
- Update where your old number lives. Swap the new line into your email signature, Google Business Profile, website contact page, invoices and social bios.
- Run both numbers in parallel for a week. Keep the old line reachable while the new one takes over. When traffic has shifted, you retire the old number cleanly.
A realistic timeline
Most people finish steps one to six in well under an hour. The only part that takes real calendar time is the parallel week in step eight, and that runs in the background while you get on with actual work.
g100.us vs staying on your old setup
| Feature | g100.us | Old personal SIM / landline |
|---|---|---|
| Setup time | Seconds, fully online | SIM order or line install, days |
| Calls, SMS, WhatsApp, OTP | One number, all four | Patchwork across devices |
| Answer from laptop | Browser + Chrome extension | Usually tied to the handset |
| Look local abroad | Numbers in many countries | One home country code only |
| Pricing | Flat weekly/monthly, no contract | Per-minute or bundled tariffs |
| Privacy | Personal SIM stays hidden | Your private number is exposed |
Tips to make the switch painless
Do the loud announcement last. Get the number working, tested and verified before you tell the world, so nobody calls a line you haven’t confirmed. Keep your OTP and WhatsApp flows on the new number from day one, because reliable delivery there is the whole point of moving.
Lean on the flat pricing to plan calmly. With no per-minute meter running, you can talk to customers for as long as a deal needs without watching a clock. If you ever scale down, releasing a number in the dashboard is as simple as buying one.
For a wider view of how the platform fits into a full communications stack, the best business phone number platform guide is worth a read after you’ve set up.
Frequently Asked Questions
Is switching to g100.us complicated if I’m not technical?
No. There’s no hardware, no SIM and no installer. You sign up, pick a number, and it’s live in seconds. Answering happens in your browser or the Chrome extension, so if you can use email, you can run this.
Can I keep my old number while I move over?
Yes, and you should. Run both in parallel for about a week so calls never fall through the cracks, then retire the old line once traffic has shifted to the new one.
Will WhatsApp and OTP codes work straight away?
They will. The number handles WhatsApp verification and OTP delivery reliably, which is exactly where cheap recycled numbers tend to fail. Verify your Business profile as part of setup and you’re done.
What if I need a number in another country?
Pick one during signup or add it later from the dashboard. You can hold numbers in several countries so you look local in each market you serve.
Get Your Business Number on g100.us
Calls, SMS, WhatsApp & OTP on one professional number — live in seconds, no SIM, no contract.
