Explore global voice calling for corporate organisations offering flexible, high-quality, and cost-effective options.
Global SIP
Discover how Global Session Initiation Protocol (SIP) brings your infrastructure together to use your data network to make calls – accelerating digital transformation.
Global inbound voice network
Benefit from a cloud contact solution that makes sure all your customer calls are answered, no matter where they are.
BT One Phone
Enjoy the reliability of a desktop phone and flexibility of a mobile with this cloud-based system that seamlessly connects your team to your customers.
Cloud calling means business
Cloud calling means business
Discover how global organisations can benefit from a move to cloud-based voice and communications solutions.
Easy integration
Effortlessly merge voice functionality into your current collaboration platform – Microsoft Teams, Zoom, Webex – or a contact centre.
Secure global calling
Benefit from safer communications that meet in-country regulations, while safeguarding from cyber threats.
Sustainable transformation
Integrate voice as part of your digital transformation – and its lower energy usage will help you reach net zero faster.
Easy integration
Effortlessly merge voice functionality into your current collaboration platform – Microsoft Teams, Zoom, Webex – or a contact centre.
Secure global calling
Benefit from safer communications that meet in-country regulations, while safeguarding from cyber threats.
Sustainable transformation
Integrate voice as part of your digital transformation – and its lower energy usage will help you reach net zero faster.
Why choose BT for voice networks
Reduce costs, improve business agility, and benefit from user adoption support. We’re the perfect corporate partner on your digital transformation journey.
User adoption
Our experts can help integrate voice as part of your digital transformation. Leading global businesses come to us to solve their complex voice calling needs.
Global voice network
We support customers in over 180 countries, hosting over five million users and carrying ten billion minutes annually.
Secure and reliable
We ensure voice quality and reliability through tools that track SIP usage and service performance.
User adoption
Our experts can help integrate voice as part of your digital transformation. Leading global businesses come to us to solve their complex voice calling needs.
Global voice network
We support customers in over 180 countries, hosting over five million users and carrying ten billion minutes annually.
Secure and reliable
We ensure voice quality and reliability through tools that track SIP usage and service performance.
We do more for your business
Sustainability
Accelerate your journey towards net zero with digital sustainability solutions to help you track, measure and reduce carbon emissions.
Global Fabric simplifies cloud connectivity, security, and infrastructure for organisations, enabling you to build a programmable cloud-centric network.
Global Fabric simplifies cloud connectivity, security, and infrastructure for organisations, enabling you to build a programmable cloud-centric network.
Global Fabric simplifies cloud connectivity, security, and infrastructure for organisations, enabling you to build a programmable cloud-centric network.
Global Fabric simplifies cloud connectivity, security, and infrastructure for organisations, enabling you to build a programmable cloud-centric network.
Bring your team together and customers closer with a versatile VoIP phone system that’s easy to set up and even easier to use. Replace expensive legacy hardware with a flexible cloud phone system tailored to large business needs.
Bring your team together and customers closer with a versatile VoIP phone system that’s easy to set up and even easier to use. Replace expensive legacy hardware with a flexible cloud phone system tailored to large business needs.
Bring your team together and customers closer with a versatile VoIP phone system that’s easy to set up and even easier to use. Replace expensive legacy hardware with a flexible cloud phone system tailored to large business needs.
Bring your team together and customers closer with a versatile VoIP phone system that’s easy to set up and even easier to use. Replace expensive legacy hardware with a flexible cloud phone system tailored to large business needs.