HomeBusiness telephone systemsBT pricing review – Business telephony products and prices guide

BT pricing review – Business telephony products and prices guide



As the telecommunications landscape continues to evolve, BT remains a key player in providing business telephony solutions across the UK. Whether you’re a small enterprise or a large corporation, understanding the nuances of BT’s pricing structure is crucial for making informed decisions that align with your communication needs and budget. This guide provides an overview of BT’s business telephony products and prices, helping you navigate your options more effectively.

Overview of BT business telephony solutions

BT offers a comprehensive range of telephony solutions tailored to meet the diverse needs of businesses. These products include traditional business landline services, VoIP solutions, and integrated packages that combine voice, data, and additional services like cloud storage and cybersecurity. The key offerings can be categorised as follows:

  1. BT Business Phone Line: A traditional analogue phone line service, suitable for businesses requiring a reliable and straightforward telephony solution.
  2. BT Cloud Voice: A VoIP-based service that provides flexibility and scalability, ideal for businesses with remote working teams or multiple locations.
  3. BT One Phone: An integrated mobile and fixed-line service that allows businesses to manage all communications from a single platform, seamlessly connecting office and mobile phones.
  4. BT ISDN Lines: Although now being phased out, ISDN lines are still available for businesses that have yet to transition to IP-based services.

BT business price list

ProductInstallation CostMonthly Rental/CostCall Charges
BT Business Phone LineFrom £125£18 – £22 per lineUK landline: ~5p/min, Mobile: ~13p/min, International: Varies by country
BT Cloud VoiceTypically includedFrom £15 per userMost UK landline calls included, Mobile/International: Charged separately
BT One PhoneFrom £50 per userFrom £20 per userUK landline calls included, Mobile/International: Charged separately
BT ISDN LinesFrom £299ISDN2: From £35/month, ISDN30: From £300/monthSimilar to traditional lines, UK landline: ~5p/min, Mobile: ~13p/min
BT business pricing

This table summarises the key cost components associated with each of BT’s primary business telephony services. Depending on your business’s specific needs, additional charges for customisation, advanced features, or additional services may apply.

Pricing structure

BT’s pricing for business telephony products varies depending on the specific needs of your business, the chosen plan, and additional services required. Below is a breakdown of the general pricing structure:

BT business phone line pricing

  • Installation Costs: Starting from £125 for a new line installation.
  • Monthly Rental: Prices typically range from £18 to £22 per month per line, depending on the contract length and any additional features like call forwarding or voicemail services.
  • Call Charges: UK landline calls are usually charged at around 5p per minute, with mobile calls costing approximately 13p per minute. International rates vary by country.

BT Cloud Voice pricing

  • Set-up Costs: Typically included in the monthly fee, but may vary based on specific requirements.
  • Monthly Fees: Starting from £15 per user per month, with options to add on features such as call recording, conferencing, and advanced call management tools.
  • Call Charges: Most plans include free UK landline calls, with mobile and international calls charged at competitive rates.

BT One Phone pricing

  • Set-up Costs: Starting from £50 per user, depending on the complexity of the system.
  • Monthly Rental: Starting from £20 per user per month. This includes mobile and landline call management, with options to upgrade for additional features.
  • Call Charges: Similar to Cloud Voice, with most UK landline calls included in the monthly fee and mobile/international calls charged separately.

BT ISDN lines pricing

  • Installation Costs: From £299 for a new line, though this is becoming less common as businesses transition to IP-based solutions.
  • Monthly Rental: Prices start at £35 per month for ISDN2 lines and can go up to £300 or more for ISDN30 lines, depending on the number of channels required.
  • Call Charges: Similar to traditional phone lines, with per-minute rates for UK and international calls.

Factors influencing pricing

Several factors can affect the final cost of BT’s business telephony services:

  1. Contract Length: Longer contracts often come with lower monthly rates, while shorter contracts offer more flexibility at a higher cost.
  2. Bundling Services: Combining multiple services (such as broadband and telephony) can result in discounted rates.
  3. Number of Users: Larger businesses can benefit from volume discounts, particularly with VoIP services where costs are often calculated on a per-user basis.
  4. Customisation: Adding additional features or bespoke services will increase costs but can provide significant value depending on your business needs.

Transitioning to VoIP – What you need to know

As BT phases out ISDN and traditional analogue lines in favour of IP-based solutions, it’s important for businesses to plan their transition. VoIP services like BT Cloud Voice offer numerous advantages, including scalability, flexibility, and cost-effectiveness.

However, the transition requires a solid internet connection and potentially new hardware, which can involve additional upfront costs.

BT provides support throughout the transition process, from initial consultation to installation and training, ensuring businesses can move to the new system with minimal disruption.

Conclusion – BT business pricing review

BT’s business telephony products offer a range of solutions to meet the varying needs of UK businesses. Whether you require the simplicity of a traditional business phone line, the flexibility of VoIP, or an integrated mobile solution, understanding BT’s pricing structure and available options is essential for choosing the right service for your business.

As the telecommunications landscape continues to shift towards IP-based solutions, now is an opportune time to review your current telephony setup and consider whether a move to BT’s more modern offerings could benefit your business both operationally and financially.

For more, visit the BT Business website, and read our guide to the best business phone systems.

BT business pricing FAQ

What is the installation cost for a BT business phone line?

The installation cost for a BT business phone line typically starts from £125 for a new line.

How much does BT Cloud Voice cost per user?

BT Cloud Voice costs start from £15 per user per month, with the possibility to add features like call recording and conferencing for an additional fee.

What are the call charges for BT business phone lines?

For BT business phone lines, UK landline calls are typically charged at around 5p per minute, and calls to mobiles are approximately 13p per minute. International call rates vary depending on the country.

How much does BT charge for ISDN line rental?

BT charges start from £35 per month for ISDN2 lines and can go up to £300 or more per month for ISDN30 lines, depending on the number of channels required.

What is the monthly cost of BT One Phone service?

The monthly cost for BT One Phone starts from £20 per user, with options to include additional features at higher rates.

Does BT offer discounts for long-term contracts?

Yes, BT typically offers lower monthly rates for longer contracts. For instance, a 24-month contract might lower the monthly rental for a BT business phone line from £22 to £18.

What are the setup costs for BT One Phone service?

The setup costs for BT One Phone service typically start from £50 per user, but this can vary based on the complexity of the system being implemented.

Are there any additional charges with BT Cloud Voice?

Yes, while BT Cloud Voice starts at £15 per user per month, additional features like advanced call management or call recording can increase the cost. Mobile and international calls are also charged separately.

How much does BT charge for a new ISDN line installation?

BT charges typically start at £299 for the installation of a new ISDN line, though this service is being phased out in favour of IP-based solutions.

Can BT bundle services for a reduced price?

Yes, BT offers bundling options where combining services like broadband, telephony, and cloud services can result in discounted rates. For example, bundling BT Cloud Voice with BT Business Broadband might save you around 10% compared to purchasing each service separately.

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