British Telecommunications


BT Wholesale and Ventures provides network products and services to more than 1,200 communications providers in Great Britain through our wholesale business, offer services for media companies and broadcasters in the UK and around the globe through our media and broadcast operation, and also offer a broad range of business and consumer products and services through our venture businesses.

In the wholesale business, we are responsible for developing and selling a comprehensive product portfolio to the market and the in-life management of all the products within it. Our solutions include data services eg Ethernet, partial private circuits (PPCs), broadband and fiber: voice services, including voice interconnect and IP exchange, hosted communications services which include Centrex, SIP Trunking and hosted contact centers. We also have a range of managed, M2M and mobility solutions.

We supply around 30 wholesale mobile virtual networks, and work with the mobile network companies to supply multiple managed service contracts providing white label B2B and B2C solutions, mobile and cell site planning and build, through to backhaul and professional services.


Our Wholesale Sip Trunking (WSIPT) solution offers your customers all the benefits of next-generation voice technology, without having to replace their existing PBX and handsets. It's perfect for businesses that prefer a staged approach to unified communications. Our solution gives you risk-free entry into the SIP Trunking market.


Selling Power - WSIPT can open up new revenue streams: you can cross-sell lines, calls, access, equipment, apps and services.

Good Margins - We offer competitive wholesale call rates and licenses are available on a pay-as-you-go basis, so you can build business profitability.

Easy Deployment - WSIPT is fully self-service: you can set up services for your customers quickly and easily via a simple web interface.

Easy to Scale - You can add or remove additional end-user licenses easily as your customers' businesses grow.

Reassurance - WSIPT runs on our highly resilient next-generation network and is supported by strong Service Level Agreements


Cost Savings - On-Net calls are free, calls to mobile and international numbers are much cheaper and there are no upgrade costs for PBX features.

Impressive Flexibility - Your customers can choose from three channel service types and WSIPT can be scaled to suit any type of business, from an SME to a large contact center.

Ease of Use - End users benefit from the power of the cloud while keeping their existing PBX and handsets.

Security and Continuity - The service runs over a secure network and is certified to IS027001 for data security.

Reliability - WSIPT is an enterprise-grade solution, running on our world-class, highly resilient next-generation network. Certified to IS022301, it offers unrivalled call capacity of 5,000 channels and 50 calls per second on a single connection.

BT Wholesale SIP Trunking ShoreTel Connect ONSITE App Note
BT Hosted SIP Trunking with Ingate ShoreTel Connect ONSITE App Note
BT Data Sheet
BT Website

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