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Articles about Virtual Numbers | Tips and Advice

Read the latest stories, use cases and updates to make optimal use of your business number.

Customer service employee with a headset answering calls at an office desk

Business Phone Number: How a UK Company Gets a Separate Line

A separate business phone number keeps customer calls away from personal mobiles and stays with the company when people change roles. This guide explains the UK number types, how calls ring through to the phones your team already uses, what you need to register the number and how to choose.

CallFactory / 12 Oct 2026 / 7 min read

Virtual Numbers
Two colleagues at an office desk, one answering a call on a desk phone

Virtual Landline for Business: A UK Number Without a Physical Line

A virtual landline gives a UK business a geographic 01 or 02 number that customers call like any landline, while the calls ring through to mobiles, desk phones, a softphone or a whole team. This article explains how it works, why companies use one, how to move an existing landline number and what to look for in a provider.

CallFactory / 12 Oct 2026 / 7 min read

Virtual Numbers
Charles Bridge and Prague Castle at dusk

Czech Phone Number for Business: A Local Presence in the Czech Republic

A local +420 number gives a UK company a credible Czech presence and stronger inbound enquiries. This article explains how Czech numbering works under the ČTÚ — a toll-free 800 number registers on a worldwide address, whilst a geographic number such as a Prague 2 line requires the end user's location in that zone — and how CallFactory, as the licensed operator, files and routes the number for you.

CallFactory / 6 Jul 2026 / 7 min read

Virtual Numbers
Warsaw skyline with the Palace of Culture and Science

Polish Phone Number for Business: A Local Presence in Poland

A UK company can give Polish customers a +48 number to call instead of a +44 one. This guide explains which Polish numbers UKE allows on a UK company address, when a city code such as Warsaw 22 needs a Polish address, what the line costs in pounds and how a UK team answers Polish callers.

CallFactory / 6 Jul 2026 · Updated 28 Sept 2026 / 5 min read

Virtual Numbers
Dublin city quays along the River Liffey

Irish Phone Number for Business: A Local Presence in Ireland

A local +353 number gives a UK company a credible Irish presence and stronger inbound enquiries. This article explains how Irish numbering works under ComReg — a geographic number such as Dublin 01 carries a location address in its numbering area, whilst national 0818 and freephone 1800 numbers do not — and how CallFactory files and routes the number for you.

CallFactory / 29 Jun 2026 / 7 min read

Virtual Numbers
Stockholm waterfront and old town rooftops

Swedish Phone Number for Business: A Local Presence in Sweden

A local +46 number gives a UK company a credible Swedish presence and stronger inbound enquiries. This article explains how Swedish numbering works under PTS — a geographic number such as Stockholm 08 is associated with its area, whilst national and freephone numbers are not — and how CallFactory, as the licensed operator, assigns and routes the number for you.

CallFactory / 29 Jun 2026 / 6 min read

Virtual Numbers

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Map of Europe showing the countries where CallFactory supplies numbers Numbers in 14 European countries + US