Voice solutions

Cost-effective foundation for unified communications

We’ve got the solution for you

Want the voice services you’d expect, all in one place? Look no further. You’ll only have to deal with one supplier and one account team. And we’ll create solutions that underpin a unified communications approach, with fully integrated mobile solutions.

Get in touch

10+ employees, Enterprise and Public Sector

Call us at0800 955 5590

Make an online enquiry

Find the voice solutions for your business

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Business Landlines

We'll take the hassle out of switching provider. And work to save you as much as possible.

Find out more

O2 Voice for Microsoft Teams

Enables the consolidation of voice estates onto a single platform, replacing legacy PBX or UC platforms, reducing costs and admin overheads.

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SIP Trunking

Do more with your phone system than you can by connecting straight to the traditional landline network, with SIP Trunking.

Learn more

Inbound Numbers

Our Inbound Numbers service offers a range of numbers that will help your customers keep in touch, including freephone and chargeable numbers.

Discover more

Mobile Recording

Capture all calls and text messages made and received on any mobile device, regardless of operating system. So you can be sure you’re compliant, even if you’re overseas.

Managed on-premise PBX

Let us take care of maintaining your existing equipment, or providing anything extra you need to support calls, like phones, voicemail, voice recorders and call loggers.

Turn switch-off to your advantage

Together we can digitally transform your business.

Finding your true voice

Openreach will switch off its legacy PSTN and ISDN voice network in December 2025 with last orders only being accepted until September 2023, but earlier in many places¹.

It’s the reason O2 has developed its next generation voice services and we’re here to ensure you’re one step ahead.

Ask us about switching

10+ employees, Enterprise and Public Sector

Call us at0800 955 5590

Make an online enquiry

Why choose O2?

We work with you

We’ll combine and take ownership of all your legacy voice services. Plus, plan a managed transition to transform your business at a pace that suits you.

Continued support

We’ll support your existing voice services through to 2025, audit your estate to reduce unnecessary costs and even utilise old and new tech benchmarked against industry standards.

Next generation

We’ll provide you next generation voice services such as SIP Trunking or O2 Voice for Microsoft Teams. Combined with O2 Gateway provides a single platform for voice, WAN, mobile and WIFI.

We work with you

We’ll combine and take ownership of all your legacy voice services. Plus, plan a managed transition to transform your business at a pace that suits you.

Continued support

We’ll support your existing voice services through to 2025, audit your estate to reduce unnecessary costs and even utilise old and new tech benchmarked against industry standards.

Next generation

We’ll provide you next generation voice services such as SIP Trunking or O2 Voice for Microsoft Teams. Combined with O2 Gateway provides a single platform for voice, WAN, mobile and WIFI.

Flexibility

Use services that can scale to fit your business, whenever and wherever you need them to.

Consolidation

Build an estate that is fit for purpose across an ever-evolving and flexible workforce.

Mobility

Enjoy agile collaboration across remote and office workers that aids productivity, reduces downtime and streamlines communication.

Support

Find simplified, effective support with a single point of contact to keep your team connected with little fuss.

Security

Get peace of mind with compliant, reliable security regardless of location, across all connections and devices.

Cost-effective

Reduce costs with less infrastructure and fewer channels required with a lower rental cost.

We can help you turn switch-off to your advantage

Want to know more about how you’ll benefit from our advanced voice solutions?

Download our ‘Find your true voice’ infographic for a step-by-step guide of your voice comms transition to see how we can support you every step on the way, and we've also written a blog article that you can read here.