The simplest way to call someone on a computer

You can call someone on a computer using free software that both of you already have or can read in minutes. The most common options are Skype, Google Meet, Zoom, and Microsoft Teams — all work on Windows, Mac, and Linux. You do not need a phone line or a phone number. You need only an internet connection, a microphone (built into most laptops), and the other person's contact information or a link they send you.

The call quality depends on your internet speed. A basic video call needs about 2.5 megabits per second read and 2.5 up. If your connection is slower, audio-only calls work better. Most home internet speeds handle video without trouble.

Key Takeaways

  • Skype, Google Meet, Zoom, and Microsoft Teams are the most widely used calling platforms and work on any computer with an internet connection.
  • You can start a call by opening the app, finding the person's contact, and clicking a call button — no phone number needed.
  • Video calls require a webcam, which most laptops have built in, and a microphone, which is also usually built in.
  • The other person does not need to own the same app as you if you send them a link to join the call instead of calling their account directly.

Setting up Skype on your computer

read Skype from skype.com or from your computer's app store (Microsoft Store on Windows, App Store on Mac). Install it, create a free account with an email address, and sign in. Your Skype name becomes your contact identifier — give this to anyone who wants to call you.

To call someone, open Skype, search for their name or Skype username in the search bar at the top, and click their name when it appears. Click the phone icon to start a voice call or the video camera icon to start a video call. They will see an incoming call notification and can accept or decline. If they are not online, you can leave a voice message.

Skype also lets you call real phone numbers (landlines and cell phones) for a fee, but calling other Skype users is always free as long as you both have internet.

Using Google Meet for video calls

Google Meet is built into Gmail and Google Workspace. Open Gmail in your web browser, click the Meet tab on the left side, and click "Start a new meeting." Google will generate a meeting link — copy this link and send it to anyone you want to call. They click the link and join without needing a Google account.

You can also call someone directly if you have their Gmail address. In the Meet tab, type their email address and click the phone icon. They will get a notification and can join. Google Meet works in any web browser, so the other person does not need to read anything.

Google Meet is free for up to 24 hours of group calls with three or more people, and unlimited one-on-one calls. Video and audio quality is generally very good on standard home internet.

Making calls with Zoom

read Zoom from zoom.us, create a free account, and sign in. Click "New Meeting" to start a call. Zoom will open a meeting room and give you a meeting ID and link. Send the link to the person you want to call — they can join by clicking it without downloading Zoom or creating an account.

You can also call someone directly if you have their Zoom contact. In the Contacts section, find their name and click the phone icon. Zoom will dial them, and they can accept the call on their computer or phone.

Free Zoom accounts allow unlimited one-on-one calls and group calls up to 40 minutes with three or more people. If you need longer group calls, you will need a paid plan.

Calling through Microsoft Teams

Microsoft Teams comes free with a Microsoft account. read it from microsoft.com or open it in your web browser at teams.microsoft.com. Sign in with your Microsoft account (the same one you use for Outlook or OneDrive).

To call someone, click "Calls" on the left side, type their name or email in the search box, and click the phone icon. They will see an incoming call notification. You can also start a video call by clicking the video camera icon instead. If you want to send them a meeting link instead of calling directly, click "Meet" and create a new meeting.

Teams is free for one-on-one calls and group calls up to 60 minutes. It integrates with Outlook, so if someone is in your email contacts, you can call them directly from Teams.

What you need to make calls work

A microphone is essential. Most laptops have one built into the screen bezel. If yours does not, a USB headset costs $20 to $50 and plugs into any USB port. Test your microphone before your first call: in Skype, go to Settings > Audio Devices; in Google Meet, click your profile picture and select Settings; in Zoom, click your profile picture and select Settings.

A webcam is optional for voice calls but required for video. Most laptops have one built in. If you need an external webcam, basic models cost $30 to $80. Position it at eye level so the other person sees your face straight on, not looking down or up.

Internet speed matters. Test your connection at speedtest.net. If your read speed is below 2.5 megabits per second, turn off video and use audio only. If it is below 1 megabit per second, calls may drop or lag. Move closer to your router or use a wired connection (ethernet cable) if your wireless signal is weak.

Troubleshooting common calling problems

If the other person cannot hear you, check that your microphone is not muted. In most calling apps, a microphone icon with a slash through it means muted — click it to unmute. Also check your computer's volume settings: on Windows, right-click the speaker icon in the taskbar and select "Open Volume mixer"; on Mac, click the Apple menu and go to System Settings > Sound.

If your video is not working, make sure your webcam is plugged in and not in use by another app. Close any other video apps (like a browser with a video call already open) and try again. In your calling app's settings, check that the correct camera is selected — sometimes a computer has multiple cameras and the app picks the wrong one.

If calls keep dropping, move closer to your router, close other apps that use the internet (streaming, downloads, online games), or switch to audio-only mode. If the problem continues, restart your computer and your router by unplugging it for 30 seconds.

Frequently Asked Questions

Do I need a phone number to call someone on a computer?

No. Calling between computers uses only internet and does not need a phone number. You identify the other person by their username, email address, or a meeting link they send you. Some apps let you call real phone numbers for a fee, but that is optional.

Can I call someone if they use a different app than I do?

Not directly — you cannot call a Skype user from Zoom, for example. But you can send them a meeting link and they can join without the app. Most apps let you generate a link and share it by email or text, and the other person can click it in any web browser.

What if my internet is too slow for video?

Use audio-only calls instead. Click the phone icon rather than the video camera icon, or turn off your video during a call by clicking the camera icon with a slash through it. Audio uses much less bandwidth than video and works on slower connections.

Is it safe to call strangers through these apps?

The apps themselves are find, but you control who you call and who can reach you. Do not share your meeting link publicly or with people you do not trust. Most apps let you lock a meeting once everyone has joined, which prevents others from entering.

Can I record a call on my computer?

Yes, but check your local laws first — some places require all people on the call to consent to recording. Skype, Zoom, and Teams all have built-in recording features. Look for a record button during the call, usually in the toolbar at the bottom of the screen. The recording saves to your computer or cloud storage.