How Remote Workers In Bali Can Securely Call UK Clients

You're in a coworking space in Canggu, it's 4 PM local time — which means it's 9 AM in London — and you need to call a client before their day fills up with meetings. You pull out your phone, dial the +44 number, and one of three things happens: the call doesn't connect, the audio sounds like you're underwater, or the call goes through but your client sees an unfamiliar +62 number and lets it ring to voicemail.

This is the daily reality for remote workers in Bali who need to maintain professional relationships with UK clients. The dream is "work from anywhere." The reality involves a surprising amount of friction around something as basic as a phone call.

The Real Problems

Indonesian SIMs are unreliable for international calls. Local carriers like Telkomsel, XL, and Indosat work fine for domestic use, but international call quality varies wildly. Some calls connect perfectly; others have a 2-second delay that makes conversation impossible. And rates aren't cheap either — calling a UK landline from an Indonesian SIM can cost $0.30–$0.50 per minute.

Roaming on your UK SIM is expensive. If you keep your Three, EE, or Vodafone UK SIM active in Indonesia, you're paying roaming rates for every call. Most UK carriers charge £1–£2 per minute for calls made from Southeast Asia. A 30-minute client call costs you £30–£60. That adds up fast if you're making calls every week.

Your caller ID is wrong. This is the one people underestimate. When a UK client sees an incoming call from +62 (Indonesia's country code), they don't think "oh, that's my designer calling from Bali." They think spam. Even clients who know you're abroad may not recognize the number and won't pick up. First impressions on caller ID matter more than most people realize, especially if you're freelancing or running a small consultancy.

Budget VoIP apps have quality issues. Apps like Skype (now discontinued as a standalone product) or random VoIP apps from the app store technically make international calls, but audio quality is often mediocre. They use aggressive compression to keep bandwidth low, which means your voice sounds tinny or robotic. Not ideal when you're trying to sound professional.

What Actually Works From Bali

The infrastructure in Bali has improved a lot in the last few years. Most coworking spaces in Canggu, Ubud, and Sanur have solid Wi-Fi (20–50 Mbps), and fiber connections in private villas are increasingly common. That means the bottleneck isn't your internet — it's what you're using to make the call.

Browser-based VoIP using WebRTC is the most reliable option. WebRTC is the technology that powers voice and video in your browser — it's what Google Meet and similar services use under the hood. The key difference with a service like DialVia is that it connects your browser-based call to real phone numbers on the UK telephone network, so you can call landlines (those +44 20 numbers) and mobiles alike.

A few things make this approach work well from Southeast Asia specifically:

• Audio quality scales with your connection. WebRTC adapts to your available bandwidth in real time. On a solid coworking Wi-Fi connection, call quality is comparable to a local landline call. It doesn't use the fixed-bitrate compression that makes cheap VoIP apps sound bad.
• Encryption is built in. WebRTC encrypts calls by default — it's part of the protocol specification, not an optional add-on. If you're discussing contracts, invoices, or project details with clients, the call is protected without you having to configure anything.
• Professional caller ID. With DialVia, you can verify your own UK mobile number so that clients see your familiar number on their screen — not a random Indonesian one. They pick up because they recognize who's calling.
• No app to install. You open your browser, log in, and dial. This matters when you're switching between your laptop at the coworking space and your tablet at the villa. No app compatibility issues, no updates to manage.

Practical Setup Tips

• Use the 5 GHz Wi-Fi band if your coworking space offers it. The 2.4 GHz band in busy spaces gets congested, which causes audio dropouts. Most modern laptops connect to 5 GHz automatically, but it's worth checking.
• Use a headset with a microphone. Built-in laptop microphones pick up ambient noise — and Bali coworking spaces are not quiet. A basic USB or Bluetooth headset dramatically improves how you sound on the other end.
• Test your connection before important calls. Run a quick speed test. You need at least 1 Mbps upload for reliable voice calls. If the Wi-Fi is struggling, tether to your phone's 4G as a backup — Telkomsel's 4G coverage in tourist areas is generally solid.
• Schedule calls during stable internet hours. In some Bali locations, internet speed drops during peak evening hours (7–10 PM local) when everyone is streaming. Morning and early afternoon local time (which overlaps nicely with UK business hours) tends to be more reliable.
• Keep your UK number verified. If you're using a browser-based service that supports caller ID verification, set it up before you need it. Verifying a number typically requires receiving a code via SMS to your UK SIM, which is easier to do while you still have signal on that SIM.

The Honest Tradeoff

No solution is perfect. Browser-based calling depends entirely on your internet connection. If you're in a remote part of Bali with spotty Wi-Fi, you'll have the same problems as any other internet-dependent service. The difference is that when you do have a good connection — which is most of the time in the popular remote work areas — the call quality and reliability are noticeably better than what you get from a local SIM or a roaming UK number.

For most remote workers doing regular client calls, the practical setup is: DialVia open in a browser tab, a decent headset, and a coworking space with reliable Wi-Fi. That combination handles 95% of the "I need to call London" moments without drama.

👉 Try DialVia — call from your browser in 30 seconds Or return to the DialVia homepage to learn more.