We offer a wide range of secure connectivity solutions to support businesses throughout the UK and internationally.

We pride ourselves on understanding our client’s business and requirements, and finding the right secure connectivity solution to support business strategy and growth aspirations. We can help you identify your business needs, share our significant buying power benefits and manage the change in your business to completion. As secure communications specialists we help you navigate business needs in a digital era.

SIP Trunks Net-Defence

Business Lines & SIP Trunks


  • Analogue
  • ISDN2e
  • ISDN30e


SIP Trunks are virtual telephone lines, in that they create a phone line over your internet connection. By connecting your business to the phone network via the internet, SIP trunking offers you great flexibility and even better savings.

ND Communications secure lines

Leased Lines

Leased lines are considered a premium connectivity product because unlike various broadband services, leased lines are dedicated, uncontended data lines with symmetrical bandwidth speeds. With dedicated lines users can get higher speeds of service and a higher service level guarantee.

  • Dedicated high Performance connection
  • Scalable solutions for future growth
  • Comprehensive 100% SLA