

Metallic Path Facility (MPF) Lines
MPF lines let you use your existing phones for landline voice, and aren't affected by the BT PSTN switch off in January 2027. So if your business isn't ready to migrate to IP voice, MPF will set you up for the future ahead of the switch off. And beyond.
Key features of MPF lines
Cost effective
Unlike WLR lines, MPF lines are not affected by BT Openreach price rises that are taking place, which will lead to line prices doubling as we approach the end of 2026.
Widely available
MPF lines are available in 92% of local exchanges across the UK, and use existing copper connections. Where available, we can simply switch your WLR line to MPF, allowing for easy migration, and expect MPF lines to be continued to be supported until 2030.
Flexibility first
MPF lines don’t lock you into a voice or data solution you're not ready for. It's all about giving you options and allowing for adoption at your own pace.
Minimal disruption
Simply keep your existing phones plugged into your wall socket and continue to make and receive calls.

What are MPF lines?
Let's TalkWhat you get from us with MPF lines
Backed by millions
We deliver over Britain's biggest unbundled broadband and voice network, with over three million business and residential customers on MPF lines.
Retain your analogue services
Devices like analogue phones and alarms can continue to operate on MPF lines - while the service also supports multiple calling features such as anonymous call rejection and call waiting - ensuring your sites can retain critical functions.
Migrate when you're ready
If your BT WLR line charges increase, our MPF offering is a more affordable solution that allows your business to migrate at a pace that's right for you.
Our partners
We work with a trusted set of technology leaders, including Cisco, Cisco Meraki, Mitel, Zoom, Comms-care and Pangea. You get a tailored suite of best-in-class products, blended within a service wrap that adapts as your business grows.

Our customer stories
See how leading UK businesses are benefitting from our flexible services and tailored solutions.


























