Get In Touch:

News: *The phone line switch off has already begun* How are You preparing? learn more about the isdn/pstn switch off

SIP Service Solutions


To function, modern businesses need flexible and reliable digital communications solutions. Our enterprise SIP technologies are designed to meet this challenge, now and into the future.

A revolution in business telephony

By replacing analogue telephone wires and connections with virtual infrastructure, businesses can explore new ways of working. For example:

  • Organisations can rationalise separate PBX installations
  • Workforces can share media-rich content between fixed-line phones, laptops and mobiles
  • Seasonal and unplanned fluctuations in call volume can be accommodated quickly

We offer enterprise-grade SIP trunking over our reliable, high-availability network. No matter the load, call quality and connection rates will always remain high.

Benefits of SIP trunking from Structured Communications

A true business broadband solution

Until recently, the model for business telephony enabled by SIP was technologically challenging and cost prohibitive. By leveraging our expertise, your organisation will quickly realise these advantages:

Reduced costs

In addition to cheaper call charges, the costs associated with line rental and physical installation will also be negated. You’ll only have to pay a single entity: your internet services provider.

Easy scalability

SIP channels are quick and easy to enable or disable — in most cases it may take as little as 24 hours to modify line capacity, not days or weeks. Additional sites can also be integrated with ease.


With traditional PSTN and ISDN services being retired, virtual telephone networking will soon become the default communications medium. Investing now makes financial and logistical sense.

Flexible feature integration

Enable a host of advanced calling features in a configuration that suits the needs of your organisation: from scheduled, customised out-of-office messages to shared video teleconferencing.

Why choose Structured Communications for SIP trunking?


The virtual nature of SIP trunking means disruptive engineering works are not required. Depending on the requirement, it’s also possible for organisations to continue using existing hardware.

Specialist direct network to connect your whole business

Our SIP trunks and channels operate on a network designed and created by ourselves. With full redundancy measures built in, and an uncontended connection to the internet ensuring optimum performance, we provide a flexible yet resilient backbone for your digital communications.

Ability to monitor to maximise efficiency

We design and operate the network that underpins our SIP services. This makes it possible to maintain high connection quality without relying on or requesting intervention from third parties.

Rated 4.65/5 by customers

Our scores is based on the reviews we’ve collected on

The solutions that they offered were practical and affordable, designed specifically to our own needs. Great service overall!


Contact Us

Fill in the form below to request a quote, callback, or to discuss further about how our service solutions can help meet your business needs.

Let’s Talk

Get in touch to discuss your needs.



Our bespoke solutions lay a reliable and secure foundation for evolving communications strategies. We combine talent with dedication to quality, so your business benefits from best-in-class connectivity.

Large & Corporate Business //

BOARDBAND & Data Solutions

Customised solution designs, tailored and scaled to your business’ needs.

Large & Corporate Business //


SIM-only mobile plans offering excellent coverage, high data allowances, and unlimited minutes.

Large & Corporate Business //


Unify voice and data services with a customised digital communications platform.

Large & Corporate Business //


High-grade fibre leased lines remove risk, ensure reliability, and avoid bandwidth bottlenecks.

Rated 4.65/5 by customers

Our scores is based on the reviews we’ve collected on

"So easy to say excellent. Each step was handled efficiently and with speed. The people I dealt with understand customer care. I would recommend them, without hesitation."