Clarion SIP Trunks offer you a flexible, scalable, low-cost alternative to traditional ISDN/Analogue phone services. We are seeing unprecedented interest and a surge in orders.

SIP Trunks use VoIP (Voice over IP) to connect your phone system to the Public Switched Telephone Network (PSTN) via your data line.

SIP Trunks are ideal for companies that want:

  • To save money on Lines & Calls
  • The ability to move offices but take their numbers with them
  • A resilient alternative or companion to ISDN lines
  • Total control and site of their lines estate
  • Speedy scalability and swift deployment

Huge Savings:

  • Eliminate in-company call costs between sites
  • Eliminate UK landline and Mobile call charges (term-dependant)
  • Enjoy huge reductions in channel charges compared with Analogue/ISDN

Key Benefits

Substantial savings on both Lines & Calls

Take control – add/remove lines as you need

Take your numbers wherever you go – no longer tied to a geographical location

Increase resilience with alternative call path to ISDN/Analogue

Business Continuity - Preplan for emergencies with rapid rerouting to alternative numbers

Seamless integration with all major PBX Brands

Our SIP Trunks interoperate with Microsoft Lync/Skype for Business platform

The future – BT are phasing out ISDN – get ahead of the game!

Get up to 30 Free SIP Trunks with our high-speed Data Lines FIND OUT MORE

We do the work

We will evaluate your existing set-up and where you do not have the necessary infrastructure in place, we will specify and implement appropriate data connectivity and system modifications.

Be prepared

BT are completely phasing out ISDN and PSTN lines by 2025. Don’t be the last to the party. Join the SIP revolution now!

Contact Us

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