SIP Trunks


Session Initiation Protocol (SIP) trunking is a standards-based replacement for traditional Integrated Services Digital Networks (ISDN) and Plain Old Telephone Systems (POTS).

Orbital SIP trunks offer a more flexible, lower cost alternative for your calls (also called minutes) and Orbital can build these costs based on your company and call profile.

The service can support connections ranging from a single extension for small PBX-equipped businesses to an unlimited number of channels for large enterprises and call centres.

Our SIP trunks work seamlessly with most IP PBX suppliers. If you are unsure please contact us for a straightforward answer on compatibility.

SIP Trunks

SIP Trunks connect your existing Phone Switch (PBX) to the PSTN via our WiMAX broadband, Ethernet or private circuit into our national network.

Compared to ISDN, Orbital SIP Trunking is more cost effective and more flexible, both in how and where geographic telephone numbers can be used.

As it is delivered over your existing internet connection the provision of the service is both easy and swift and it delivers extremely robust business continuity.

Any business with a PBX can switch to our SIP trunking service to immediately benefit from a more flexible, less expensive, more resilient phone service.

Alternatively, if you do not have a PBX or you are considering a complete solution why not try Orbital Cloud PBX.

Key features

  • Future-proof solutions

  • Feature rich

  • Resilience

  • Business continuity

  • £

    Low Cap Ex/Low Op Ex Options

  • Geographically Independent

Some of our existing customers

Why choose Orbital?

Orbital have been providing bespoke solutions to businesses since 1998. From humble beginnings, Orbital is now providing services to thousands of businesses across the UK and USA. This is achieved by maintaining our ethos of providing a professional, personal service to all our customers.

  • UK based support
  • Allocated account manager
  • Family owned company
  • Knowledgeable Staff
  • Personal Service
  • 365x24x7 Support Line
  • Excellent SLAs
  • Operating for 25 years