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BlogSonetel explains
Henrik Thome
CEO & Founder
3 February 2026

VoIP call

A VoIP call can sound bad or even fail when you use the wrong setup. This article shows you how to make clear internet calls from your phone or computer, and how to fix the most common VoIP calling problems.

You will learn what VoIP calling is, how to place calls, and how Sonetel helps.

What a VoIP call is

A VoIP call is a phone call that uses the internet instead of a traditional phone line. Your voice becomes small data packets that travel online, and the other person hears them as normal speech. (Zoom)

You can place a VoIP call from a smartphone app, a web app in your browser, or a desktop app. That is why VoIP works well when you travel, work remotely, or run a small online business. (Zoom)

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Why a VoIP call helps small teams

Small teams often need to call customers, suppliers, and partners quickly. At the same time, they want to control cost and stay reachable, even when they are not in the office.

A VoIP call can help you because it:

  • Lets you call
    from anywhere with internet access
  • Reduces the need
    for extra hardware
  • Makes it easier to separate work calls from personal calls,
    if you choose a business number

This matches how many e-commerce stores, consultants, and SaaS teams work today. (Zoom)

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What you need before you make your first VoIP call

You can get started fast. Still, you will get better results if you prepare a simple setup.

To make a reliable VoIP call, you need:

  • A stable internet connection
    (Wi‑Fi or mobile data)
  • A phone or computer
    with a microphone and speaker
  • A headset
    if you take calls in a noisy place
  • A VoIP calling app or service
    you can trust

If call quality matters for sales or support, test your setup before an important call.

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How to place a VoIP call with Sonetel

Sonetel lets you make calls to landlines and mobiles worldwide from the Sonetel mobile apps or the Sonetel web app. You can start a call from inside the app, just like with a normal phone. (Sonetel)

You can follow this simple process:

  1. Create your Sonetel account
    and verify your phone number.
  2. Get the Sonetel apps for mobile, or open the Sonetel web app in your browser.
    Use this guide: Get the Sonetel apps. (Sonetel)
  3. Open the dialer
    or search for a contact.
  4. Choose how you want to connect the call
    (internet call or other options).
  5. Call the number
    and speak as usual.

If you want more detailed steps, you can also follow: Make calls with Sonetel. (Sonetel)

Calling from your phone

Your phone works well for quick customer follow-ups. It also helps when you switch between places during the day.

For better results:

  • Use Wi‑Fi when possible,
    since it often stays more stable than mobile data indoors.
  • Use headphones
    to reduce echo and background noise.
  • Close heavy apps
    that may use a lot of bandwidth in the background.

Calling from your computer

A computer is great for longer calls, demos, and support sessions. You can also take notes and view customer details at the same time.

For clearer calls:

  • Use a headset
    instead of laptop speakers.
  • Prefer wired internet
    if you have it.
  • Keep only the tabs you need,
    especially during video meetings.
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What number the other person sees in a VoIP call

Many people worry about caller ID. This matters when you call new leads, or when you want customers to call you back.

With Sonetel, the person you call will, by default, see your regular mobile number (the number you used to verify your account). If you want to show a Sonetel number instead, you need a paid plan. (Sonetel)

A common approach is:

  • Use your regular mobile number
    for personal calls.
  • Show a dedicated business number
    when you call customers.

If you want to explore plan options, you can start here: Sonetel pricing and plans. (Sonetel)

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Fix common VoIP call issues fast

Most VoIP call problems come from the network. In practice, three things cause most quality issues: latency, jitter, and packet loss. (Twilio)

Choppy audio or “robot voice”

This usually happens when your connection delivers packets unevenly. That can happen during Wi‑Fi congestion, or when someone streams video on the same network. (Twilio)

Try these quick fixes:

  • Move closer to the router,
    or switch to another network.
  • Pause large uploads
    or downloads.
  • Use a wired connection
    on your computer.

Echo or feedback

Echo often comes from speaker audio looping back into the microphone. It can also happen with poor audio settings.

To fix it:

  • Use a headset.
  • Lower speaker volume.
  • Avoid calling in a room with strong echo.

One-way audio

One-way audio means one person can hear the other, but not the other way around. Network settings can cause this, especially on office routers.

What helps most:

  • Switch networks
    (for example, from office Wi‑Fi to mobile hotspot).
  • Restart your router.
  • If the problem repeats,
    ask your IT support to check router settings.

Calls drop after a few minutes

Dropped calls often point to unstable Wi‑Fi or weak mobile data. They can also happen when your device switches between networks.

To reduce drops:

  • Turn off Wi‑Fi
    if it is weak and use mobile data instead.
  • Stay on one network
    during the call.
  • Keep your phone charged,
    since battery saving modes can affect background connectivity.
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VoIP call quality basics you can actually use

You do not need deep networking skills. However, it helps to know what the words mean when you troubleshoot.

Here are the basics:

  • Latency means delay.
    Too much delay makes people talk over each other. (Twilio)
  • Jitter means variation in packet timing.
    It often creates choppy sound. (Twilio)
  • Packet loss means missing audio pieces.
    It makes words disappear. (Twilio)

If you want a deeper explanation, you can read Twilio’s guide to VoIP call quality and common causes. (Twilio)

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Sonetel compared with other VoIP calling options

Many services let you place a VoIP call. Still, the right choice depends on your team size, your budget, and how you work.

The table below compares Sonetel with a few well-known alternatives.

Here are the sources used for the comparison: Sonetel plans and number pricing, Google Voice plans, Zoom Phone plan starting points, and RingCentral plan starting points. (Sonetel)

Category Sonetel Google Voice Zoom Phone RingCentral
Good fit for Very small teams and solo users who want flexible calling Teams already deep in Google Workspace Teams that want calling inside the Zoom ecosystem Teams that want a broad communications suite
Typical starting point Number from $1.79/month on Basic; paid plans from $9.95/user/month $10/user/month for Starter Plans start around $10/user/month Core plan starts at $20/user/month (annual pricing)
Pay-as-you-go option Yes (Basic) No No (subscription plans) No
Works on phone + computer Yes (mobile + web app) Yes Yes Yes

A second comparison that matters for outbound calls

Outbound calling creates two practical needs: clear caller ID and tools that help you improve your calls over time.

This table focuses on those needs. (Sonetel)

What matters for an outbound VoIP call Sonetel Google Voice Zoom Phone RingCentral
Show a business number as caller ID Yes (with a paid plan) Yes (plan-based) Yes (plan-based) Yes (plan-based)
Start calling from a browser Yes Yes Yes Yes
Built-in AI to review and improve calls Yes (call summaries + analysis in higher plans) Varies by setup Often available in ecosystem Often available in higher tiers/add-ons
Best match for teams under 10 people Strong Good in supported countries Good Often better for larger setups

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Use AI to get more value from each VoIP call

If you sell services or handle support, you learn something in every call. The problem is that you forget details as soon as you move on.

Sonetel includes AI tools in Premium and Business plans, such as call summaries and customer call analysis. They help you review what happened, find action items, and improve how you handle customer calls over time. (Sonetel)

You can learn more here:

  • Call summaries
  • Customer call analysis
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FAQ

Can I make a VoIP call to a normal phone number?

Yes. Many VoIP services connect your call to the regular phone network, so you can call landlines and mobiles. (RingCentral)

Is a VoIP call the same as an app-to-app call?

Not always. An app-to-app call stays inside the same app ecosystem. A VoIP call can also reach regular phone numbers through a provider’s network. (RingCentral)

What if my VoIP call quality is bad even with good internet?

Check jitter, latency, and packet loss. Also try a headset and a wired connection. These steps often fix the problem. (Twilio)

Will people see my personal number when I call?

With Sonetel, they will normally see your verified mobile number. If you want them to see a Sonetel number instead, you can use a paid plan and show that number. (Sonetel)

Should I use VoIP for emergency calls?

Use your regular mobile service for emergencies. VoIP depends on internet and power, and providers handle emergency calling differently. (Zoom)

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