Make Calls With Virtual Number: How Calling From a US Number Works
A call from a number the other person recognises gets answered; a call from an unfamiliar international number often does not. When you make calls with a virtual number, the person you ring sees that rented number, ideally a local one for them, while your personal number stays out of sight and the call itself travels over Wi-Fi or mobile data.
This guide explains how internet calling on a virtual number works, what you need, how to get clear audio, who it suits, how calls relate to your balance, and what to check when a call will not connect. Internet calls are available on eligible rented numbers, depending on number, country, provider and destination.
Make calls with virtual number apps: how it works
Figure 1. Your voice travels as data until the provider hands the call to the phone network. Illustrative diagram, not a product screenshot.
When you call from the app, your voice travels as data to the provider, which connects the call to the normal phone network. The person you are calling sees the rented number. Incoming calls work the other way: someone dials your rented number and the app rings.
What you need
- An internet connection, on Wi-Fi or mobile data.
- The Numsify app with microphone permission, and notification permission so you see incoming calls.
- A rented number whose details show that calls are supported.
Making your first call
- Open the rented number in the app.
- Go to the dialler and enter the number with its country code.
- Tap call and wait for the connection.
- Check that the other person hears you clearly, and move to a better connection if not.
Receiving calls
Keep notifications on and the app allowed to run in the background. If a call is missed, call back from the same number so the person recognises it.
Getting good call quality
Figure 2. Most choppy calls come from the connection, not the number. Illustrative diagram.
- Use a stable connection. Strong Wi-Fi is best; mobile data works if the signal is good.
- Avoid busy networks. Hotel and café Wi-Fi shared by many people can cause choppy audio.
- Use headphones in noisy places so the other person hears you, not the room.
- Close heavy apps such as video streaming during the call.
Who uses virtual number calls
Businesses and freelancers
Calling clients from a business number keeps your personal number private and gives clients one number to call back.
People abroad
Calling home from a local number of your home country is familiar for the person you call, and it uses your internet connection instead of roaming.
Newcomers and house hunters
A local number lets you call landlords and employers in the new country before you have a local SIM.
Calls and your balance
Calls and texts use communication credit, which is separate from the plan that keeps the number rented. Add balance on the top-up page when you need more, using the payment methods shown there.
What calls on a virtual number are not for
Do not rely on the rented number for emergency calls; use your regular mobile line. Some numbers and destinations do not support calls at all, which is why checking the number's details first matters.
Calling across time zones
Internet calls work the same from any country, but the person you call lives in their own time zone. Check the local time before calling, and for a first call send a short text from the same number saying who you are and when you will call. People are much more likely to answer a number they were expecting.
If you miss a call
If you cannot answer, a quick text back from the same number lets people know you'll call back: "Sorry I missed your call, I'll ring you back after 3pm." Customers and landlords see that you are reachable, and the conversation stays on one number.
Troubleshooting a call that will not connect
Figure 3. Rule out the simple causes before you report a failed route. Illustrative diagram.
- Check that the number you are calling includes its country code.
- Switch between Wi-Fi and mobile data to rule out a blocked network.
- Confirm the app has microphone permission in your phone's settings.
- Try another destination to see whether the problem is the route rather than your setup.
- If calls still fail, contact us with the time and the number you called.
Choosing a number for calls on Numsify
Not every number supports calls, so start with the number's details and confirm that calls are listed for the destinations you need. Capabilities differ by number, country and provider. You can browse and rent on numsify.com or in the app for iPhone and Android, on 1, 3, 6 or 12-month plans.
The plan keeps the number rented; calls draw on communication credit from your balance, which you add on the top-up page. Some numbers may require ID verification under local rules.
Features
| Feature | Status in Numsify |
|---|---|
| Number rental on the website and in the app (iPhone and Android) | Available |
| Receive SMS on a rented number | Available |
| Sending SMS | Each number's supported features, such as receiving or sending SMS, are shown before you buy. |
| Internet voice calls, outgoing and incoming | Available on eligible rented numbers; depends on number, country, provider and destination |
| Number details page before you rent | Available; shows what that particular number supports, which differs by number, country and provider |
Voice calls need an internet connection and the relevant permissions on your device.
Plans
| Plan | Best when | Price |
|---|---|---|
| 12-month | Calls from the number are part of your work or family routine all year | See current prices: website · App Store · Current prices: Numsify website · Google Play · App Store |
| 6-month | Clients, landlords or family call you on it regularly | See current prices: website · App Store · Current prices: Numsify website · Google Play · App Store |
| 3-month | You are trying internet calling for a season or a project | See current prices: website · App Store · Current prices: Numsify website · Google Play · App Store |
| 1-month | A short trip or a burst of calls, such as a house hunt | See current prices: website · App Store · Current prices: Numsify website · Google Play · App Store |
A rental renews for the same plan term you selected while your rental balance covers the renewal, unless you cancel it. Renewals and cancellations are managed on the platform where you bought the plan: the website, the App Store or Google Play. If you do cancel, move any important accounts to another number first, because a number that is no longer rented may be given to someone else.
Best for
Calling home while abroad
Ring banks and family from a local number over Wi-Fi.
Small businesses
Call customers from the business number, not your own.
Remote workers
Join a team in another country with a local number.
Frequently asked questions
Can the person I call see my personal number?
No. Calls from the Numsify app show the rented number. Your personal number is only shown if you call from your phone's normal dialler.
Do I need a SIM card in my phone to call?
The app needs an internet connection, which can be Wi-Fi alone. Your SIM is not used for app calls.
Can I call toll-free numbers?
Not always. Toll-free support depends on the rented number and the route, so place a short test call to the toll-free line you need before you count on it.
Make your first call from a rented number
Choose a number whose details list calls to the destinations you need, test a short call on the connection you will usually use, and keep your regular mobile line for emergencies. Start on numsify.com or in the app, and contact us with the time and number if a call fails.