ISDN Services

Transfer or install ISDN2 or ISDN30 lines with Elite and benefit from extra telephony resilience, immediate scalability and industry-leading call plans.

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What is Elite Group

What is ISDN?

ISDN (Integrated Services Digital Network) is a set of communication standards that uses digital transmission to make phone and video calls and transmit data and other network services over the traditional PSTN.


Splits lines into multiple channels and allows multiple phones to make and receive calls simultaneously using one physical line.


Suited to smaller businesses that can’t afford breaks in data transmission. It allows for up to 60 channels, which can be bonded to increase bandwidth.

ISDN 30 

More suited to larger businesses that need high-quality video conferencing, consistent transfer of large files or those that operate call centres.

A tailor-made telephony solution

A Tailor-Made Telephony Solution

Elite transfer and install ISDN2 and ISDN 30 lines to provide scalable solutions for any sized business, from SMEs to large corporations.

Customers can access an unlimited number of channels, which can be bonded together to increase bandwidth.

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NOTE: ISDN will change over the coming years as part of the Openreach PSTN shutdown in 2025. All existing analogue and ISDN services will be end of life between December 2022 and December 2025 to make way for new and exciting next generation IP services such as hosted telephony solutions. Elite Group provides consultancy on when to migrate and what product is best for your business requirements.

Key Features

ISDN for resilient, feature-rich telephony with 100% availability.

Multiple Management Functions

ISDN lines through Elite offer a range of management functions to support your daily operations, such as call barring and call divert.

Detailed and Itemised Billing

Know exactly what you're paying for and see where efficiencies can be made with clear, itemised billing, as standard.

Choice of Services

Choose between ISDN2 or ISDN30 lines and enjoy full resilience and contingency planning with 100% UK-wide availability.

Separate CPS (Carrier Pre Selection)

By using a separate CPS, Elite can enable the best UK outbound call bundles available as part of a true business service.

Business Benefits

Increase your team

Quick and Easy Installation

Reduce disruption to your business with an Elite IDSN line installation. We also deliver out-of-hours support to ensure install occurs at a time that suits you.

We will find business broadband solutions with your budget in mind

Expert Support

Enjoy peace of mind with our dedicated support team, including your own personal account manager and customer services representative.

access to your very own account manager

Partnerships with Leading Characters

Benefit commercially from Elite's close relationships with leading UK and international telecoms carriers.

One Stop For All Communications

Simplify processes by getting all your communications and IT services from a single expert provider.

Easy Cost Management

Receive easy-to-read monthly bills that can be accessed via our secure, online billing portal.

Elite Green Certified Partner

As part of our aim to be a sustainable company, we are committed to partnering with brands whose business practices align with this aim. BT Openreach is championing a green recovery and are on the road to becoming a net zero carbon emissions business by 2045. Partnering with BT Openreach contributes to our ability to operate in a more sustainable way.


Your Experience is Our Priority

Customer Ratings


Of customers rated our service as
either good or excellent.

Customer Satisfaction


Above the industry average
CSAT Score

Response Time


You can rely on a quick answer to
your support request.


Why Choose Us?

Elite are experts in helping businesses collaborate and communicate in a secure, productive and profitable way, wherever you or your employees are located.


With 27/7/365 access to our technical support team, enjoy the peace of mind that any fault or issue can be quickly rectified.


Ensure ease of collaboration between your employees with communications solutions supplied by a single provider.


Enhance workforce performance and boost productivity by using the latest analogue solutions.


Make informed spending decisions with the help of detailed, itemised billing.


When we looked at our existing suppliers, side-by-side, Elite stood out as the provider who looked after our needs the best. Elite were always available to speak with when we contacted them, ready to offer advice and we had access to a dedicated account manager who ensured our needs were always being met. It made sense that we would look to shift all communications to them.

Tom Robson | Resources and Communication Coordinator

Looking for Bespoke Analogue Telephone Lines?

Whether you're looking to get the ball rolling with a bespoke phone line from Elite or you're in need of advice on what is the best option for you, our team is here to help! Fill in our contact form and one of our specialists will be in touch!

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