Why WhatsApp and Telegram can’t call a landline (and what can)
Short answer
WhatsApp, Telegram and similar apps only call other users of the same app over the internet — they don’t connect to the public phone network, so they can’t ring a landline or an ordinary mobile number. To call a real phone number from your browser, you need a service like RobinPhone.
It’s one of the most common surprises: you open WhatsApp to call your parents’ home phone, or a hotel, or a bank — and there’s simply no way to dial a number. That isn’t a bug or a setting. It’s how these apps are built.
App-to-app, not app-to-phone
WhatsApp, Telegram and Signal send your voice as data over the internet to another copy of the same app. Both people need the app installed, a smartphone, and a data connection. The call never touches the telephone network, so there’s no way to reach a number that isn’t running the app.
“But WhatsApp has a call button?”
It does — for your contacts who also use WhatsApp and are online. A landline, a basic mobile, an office switchboard or anyone without the app is unreachable, and you’ll see no option to dial them.
What you need instead
A service that bridges the internet to the real phone network. Those services charge a small per-minute fee because the last leg runs over actual carriers — that’s what makes the call ring on an ordinary phone.
Which apps can call a real phone number?
| No | App users only | |
| Telegram | No | App users only |
| Signal | No | App users only |
| Skype | No | Retired in 2025 |
| Viber | Yes | Via paid Viber Out, app required |
 RobinPhone | Yes | From your browser, from $0.02/min, no app |
How to call a landline instead
- 1Get the full number with the country codeFor example +63 for the Philippines or +44 for the UK, then the local number without the leading 0.
- 2Open RobinPhone in any browserLaptop, tablet or phone — nothing to install. Your first 1-minute call is free.
- 3Dial — it rings their real phoneLandline or mobile, they answer like any normal call. No app or account needed on their side.
What it costs
| Philippines | $0.28/min |
| Indonesia | $0.14/min |
| Malaysia | $0.02/min |
| Vietnam | $0.19/min |
| Thailand | $0.18/min |
| United Kingdom | $0.02/min |
| United States | $0.02/min |
Live landline rates, billed per minute. No connection fee. Full rates for 175+ countries
Common questions
Can I call a landline from WhatsApp if I pay?
No. WhatsApp has no paid option for calling phone numbers; its calls are app-to-app only. You need a separate service that connects to the phone network.
Does the person I’m calling need to install anything?
Not with RobinPhone. You dial their ordinary landline or mobile number and it rings like any other call — no app, no account, no smartphone required on their side.
Why do landline calls cost money when WhatsApp is free?
WhatsApp calls stay on the internet end to end, which is free. A call to a landline has to be handed to a telephone carrier for the last stretch, and carriers charge per minute — RobinPhone passes that on at a flat rate from $0.02/min.
What’s the cheapest way to call a landline abroad?
A browser-based pay-as-you-go service. You avoid roaming, SIM cards and subscriptions, and pay only the per-minute rate for the country — most popular destinations are $0.02–$0.07 per minute.
More guides
Make the call now
First minute free. Then pay only for the minutes you talk — no app, no SIM, no subscription.