Replace your landline with VoIP. Keep your number.

Move to business VoIP while keeping your existing number. Use desk phones, mobiles and computers with a system configured around how you work.

GW-Tech helps homes and businesses prepare for the UK PSTN switch-off on 31 January 2027.

The PSTN switch-off is fixed. Your replacement should fit your setup.

The UK’s traditional PSTN and ISDN phone network is being withdrawn on 31 January 2027. Homes and businesses still using landlines will need a suitable digital replacement.

Moving to digital is not simply a matter of replacing the telephone. Your existing number, broadband, handsets, call routing and any equipment connected to the line must all be considered.

Some migrations are straightforward. Others involve alarms, lift phones, card terminals, entry systems, telemetry or backup connections that may not work through a standard VoIP adapter.

Need calls to continue during an outage?
Where required, we can include battery backup and mobile failover to help maintain service during power or broadband disruption.

GW-Tech provides managed business VoIP systems and home landline replacements, planned around your existing equipment and how you need to use it.

UK PSTN switch-off and VoIP landline replacement

Use your existing number wherever you work

Business VoIP app working across mobile and desktop devices

Keep your existing number and answer calls using a desk phone, mobile, laptop or tablet.

Calls can be routed between users, teams and locations, giving businesses and home users a flexible replacement for the traditional landline.

Get a free VoIP assessment

A business VoIP system matched to what you actually need

Start with reliable everyday calling and add more advanced features only where they provide a practical benefit.

Some customers need one number and a straightforward replacement for their existing landline. Others need several users, departments, locations or more control over how calls are handled.

We begin by understanding your current numbers, equipment, broadband and the way incoming calls should reach you or your team.

A simple setup can provide dependable calling across desk phones, mobiles and computers without paying for unnecessary features.

Where more is required, we can provide call routing, opening-hours schedules, hunt groups, queues, call recording, Microsoft Teams calling, CRM integration, multi-site working and resilience options.

GW-Tech works with several VoIP platforms, allowing us to recommend a suitable solution for your requirements and budget rather than forcing every customer into the same system.

See what is included in our standard VoIP service:

View the VoIP Service Overview (PDF)

Common VoIP questions

Can I keep my number?

Usually, yes. We check that your number can be transferred before arranging the move.

How much will it cost?

The cost depends on the number of users, telephone numbers and features required. We recommend only what your setup needs.

Do I need new broadband?

Not necessarily. We check the stability and capacity of your current connection and recommend changes only where required.

What if the broadband fails?

Calls can be redirected to mobiles, and a mobile backup connection can support on-site calling where continuity is important.

What happens during a power cut?

Digital phone equipment requires power. Battery backup can support essential equipment for a limited period, with mobile redirection available as another option.

Can I keep my existing phones?

Compatible IP phones may be reusable. Some analogue phones can be connected through an adapter, but we check compatibility before confirming the setup.

What could your phone system do better?

Choose the features that solve a genuine need now. More can be added later as your requirements change.

Handle calls efficiently

Route calls to the right person using ring groups, queues, departments and opening-hours schedules.

Manage missed calls

Use voicemail-to-email, notifications, call redirection and out-of-hours handling when nobody can answer.

Present a professional welcome

Add greetings, menu options and announcements that guide callers without making the experience complicated.

Support mobile working

Let users make and receive business calls wherever they work while keeping personal numbers private.

Add oversight where required

Call recording, retention, reporting and integration options are available for businesses that need greater control.

Expand when you are ready

Add users, numbers, locations and more advanced capabilities without rebuilding the entire phone system.

Tell us what is not working well with your current phone setup.

Get your VoIP recommendation

Simple self-installation, with remote support

Most standard VoIP equipment is supplied preconfigured. Connect the phone or adapter to power and your broadband, and we will guide you through the final checks remotely.

An onsite engineer visit is not included unless stated in your quotation.
If onsite installation is required, it can be arranged and charged separately.

★★★★★
“GW-Tech have been on the ball, pleasant and helpful from start to finish. They assisted with my fibre line and VoIP system for my new business and it has all been a success!”

Abbie — 5-star Bark review, 3 July 2026

View GW-Tech on Bark

    Tell us what you need from your phone system


    Briefly describe your current setup or what you would like to improve. We will review it and contact you to discuss suitable options.

    More complex business telephony?

    We can also support businesses with an existing PBX, SIP trunk requirements, Microsoft Teams calling, higher call capacity, collaboration tools or multiple locations.

    These requirements are assessed separately so the proposed platform, capacity and features match the way your organisation operates.

    Discuss your business requirements

    GW-Tech supplies and manages mobile, broadband and VoIP services, providing one accountable point of contact for your business connectivity. We also hold an Ofcom-allocated Reseller Identification Code (RID), used by the telecoms industry for administrative and switching purposes.

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