QuantuminesWork with Quantumines A small business can get a phone number without a SIM card by renting a virtual (VoIP) number that calls and texts from a browser or app, and can get business email either on its own domain through an office suite such as Google Workspace, or on a provider's shared domain for a few cents a month. If your own domain and office apps matter most, use a suite; if cost and having numbers and email in one place matter most, a console such as VerifDoc is cheaper but puts addresses on its domain, not yours.
This guide explains what each option gives you, what it costs at the time of writing, and the limits worth knowing before you print a number or address on your business cards. Prices were read on each provider's own site on 7 November 2026.
What is a virtual phone number?
A virtual or VoIP (voice over IP) number is an ordinary phone number that runs over the internet instead of a SIM card. Customers call and text it like any other number, and you answer on a computer or phone through a browser or app. It keeps your personal mobile number private, lets several devices share one line, and survives a change of handset or carrier.
Three limits matter for a business:
- Emergency calls. Some VoIP services cannot call emergency numbers such as 911. Check before you rely on one as your only phone.
- Verification codes. Some banks and apps refuse VoIP numbers when they send sign-up codes. A VoIP number is for talking to customers, not for every account you open.
- Texting US numbers from an app. US carriers want business texts to come from numbers registered with their registry, known as 10DLC. Providers handle this differently: some block texts until you register, others let you text first and register later.
What are the options for business email?
There are two kinds of business email, and the difference is the part after the @.
- Email on your own domain, such as [email protected]. You need a domain name and an email host. Office suites bundle this with documents, storage and video calls. It looks the most professional and moves with you if you change host, because you own the domain.
- Email on the provider's domain, such as [email protected]. No domain or DNS setup is needed and it costs far less, but the address belongs to the provider's domain, so you cannot take it with you, and some customers will read it as less established.
Many small businesses start with the second and move to the first once the business has a name and website it intends to keep.
How do the main options compare?
| Option | Phone number | Published price | |
|---|---|---|---|
| Google Workspace Business Starter | Not included | Your own domain, 30 GB storage per person, plus Docs, Drive and Meet | $7 per user per month on the annual plan (shown at $6.30 with a 10% first-year offer) |
| Google Voice Starter | One number per user, unlimited US calling and texting, works in Gmail; supports emergency dialing | Not included (added to a Workspace plan, or sold alone for one user) | $10 per user per month |
| VerifDoc | US, Canada and Puerto Rico numbers by area code, calls and texts in the browser; no emergency calls | Addresses on vdocmail.com with a web inbox; your own domain is not supported today | Number from $1.75 a month; each email address 5¢ a month |
Google Workspace plus Google Voice gives you a complete, well-known setup on your own domain for about $17 per user per month. It suits a business that also wants shared documents, calendars and video meetings. VerifDoc suits a business that mainly needs a separate line and a few working addresses cheaply, and is comfortable with addresses on vdocmail.com.
How to set one up, step by step
- Decide what the number is for. Customer calls and texts need a VoIP number in the area code your customers recognise. If you also need to receive verification codes for business accounts, plan for a real mobile number as well.
- Pick the area code. A local code helps people trust an unknown caller. Most providers let you search by city or area code.
- Decide on the email domain. If you already own a domain, use an office suite or email host that supports it. If not, a provider-domain address gets you started today.
- Check the texting rules if you will text US customers: what registration costs, how long approval takes, and what happens to texts before it is done. Registered business numbers may only text people who agreed to receive texts.
- Keep another phone for emergencies if your VoIP service cannot dial them.
- Write down renewal dates. A number or address that lapses may stop receiving calls or mail.
Common mistakes
- Printing a provider-domain address on long-lived material (signage, packaging) when you plan to move to your own domain soon.
- Using a VoIP number for bank sign-ups, then finding the bank will not send it a code.
- Ignoring per-text costs. Compare plans on what you will actually send and receive, not only the monthly number fee.
- Mixing personal and business use on one number, which makes it harder to hand the line to a colleague later.
What VerifDoc offers for this
Disclosure: VerifDoc is built and run by Quantumines, the studio that publishes this guide.
VerifDoc is one console for VoIP numbers, SMS verification, branded email and proxies, paid from a single prepaid balance.
| Item | VerifDoc, 7 Nov 2026 |
|---|---|
| VoIP numbers (Smart Dialer) | US, Canada and Puerto Rico; calls and two-way texts in the browser; from $1.75 a month per number plus a $1.00 one-time carrier activation fee |
| Usage | Outgoing US calls 0.6¢ a minute; texts to the US and Canada 1¢ each; plans with included incoming minutes and texts from $2.25 a month |
| US text registration (10DLC) | Optional; you can text before registering; registry fees passed on at cost ($19.50 once, then $2.00 a month for an individual or $1.50 for a business) |
| Email (VDocMail) | Addresses on vdocmail.com, 5¢ a month each; forwarding to Gmail or Outlook 5¢ a month more; own domains not supported today |
| Email Companion | Read and reply to up to 50 existing accounts (Gmail, Outlook, Yahoo, iCloud and others) in one inbox for $10 a month |
| Limits | No emergency calls from Smart Dialer |
| Payment | Prepaid balance in crypto (USDT or TRX on Tron, USDT or USDC on Solana or Ethereum), from $5 |
Facts from verifdoc.net, checked on 7 November 2026. See VoIP numbers and business email for current prices.
Frequently asked questions
Can I use a virtual number for WhatsApp or bank verification?
Sometimes, but many apps and banks refuse VoIP numbers for sign-up codes. Services that rent real mobile (non-VoIP) numbers exist for that purpose; read the app's own rules before using any rented number.
Do I need my own domain for business email?
No, but it helps. An address on your own domain is yours to keep and looks more established. An address on a provider's domain is cheaper and faster to set up.
Can I keep my number if I change provider?
Many providers support porting a number in or out, but not all do, and fees vary. Ask before you choose if the number will be on printed material.
Is a VoIP number legal for business use?
VoIP numbers are widely used by businesses. Rules on texting, call recording and marketing differ by country, so check the ones that apply to you. This guide is not legal advice.
VerifDoc is built by Quantumines, the product studio founded by Muhammad Ali Raza (Ali Arbi) in Lahore, Pakistan. Related: how proxies are used for price monitoring and what Quantumines builds.