``TNBN SIP Trunks are the best in the business with 99.99% reliability and a simple 31 day rolling contract made signing up a simple process``

Denise Clark
Frithwood Primary School

Two tariffs to choose from, £3.50 per month with PAYG calls. (UK landline 1ppm and UK mobile 3ppm / 2p set up fee per call) or £7.50 per month with 5000 bundles minutes (3000 UK landline and 2000 UK mobile 02, EE, Vodafone, Orange, per channel. Example 2 channels will give you 10,000 minutes).

Why TNBN SIP Trunks?

  • Over 5000 connections.
  • Over 300 UK schools.
  • 99.99% reliability with fail over systems.
  • HD quality sound.
  • Scale lines up and down in seconds.
  • Route calls to alternative destinations in seconds.
  • 31 day rolling contract.

Let’s place your order - If you require any help please call us on freephone 0800 019 5562


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Disclaimer: Over 15 million UK phone lines must transfer to SIP by 2025 when Openreach switch off the traditional analogue multi line, ISDN2 & ISDN30 network. The replacement being SIP Trunks will allow you to make and receive your phone calls across your broadband connection using a SIP based phone system. Please ensure you have enough bandwidth for calls (400 Kbps per call) and the correct phone system in place before transferring to SIP. If In doubt please contact us on freephone 0800 019 5562 Monday to Friday between 9am and 5pm for information.

Click Here For The Terms And Conditions