Comprehensive SIP Phone Solution from the leading SIP trunk providers. We offer SIP telephone systems to businesses across the UK. For companies wanting to make full use of their installed telephone solutions, a SIP trunk provided by an internet service provider to connect to the traditional PSTN network is the solution.


SIP Telephone Lines are virtual/cloud telephone lines utilising your internet connection. They work with a traditional IP telephone system to replace your legacy analogue/PSTN & ISDN telephone lines.

SIP Telephone Lines can be a cost-effective way to upgrade from ISDN or PSTN technology where you will also benefit from having FREE UK 01, 02, 07 and 03 telephone calls included at no additional cost.

SIP Telephone Lines can be ordered with as little as 1 channel and can be immediately scaled up (or down) in line with demand and without the need for additional physical line installation.


Reasons to Upgrade Your Business Phones to a SIP Trunking Provider

SIP – or Session Initiation Protocol – is a great solution for companies seeking a cloud-based phone service with leading communication tools. One of the primary reasons many clients switch to SIP phones is that they facilitate multimedia communication sessions, such as internet-connected video calls.

Session Initiation Protocol calling transfers the calls or multimedia communications through a SIP trunk, allowing busy businesses to establish virtual connections from any location and with unlimited SIP addresses.

These advanced SIP phones use internet technology to maintain superb reliability and connectivity, whether you use instant messaging, video conferencing or conventional phone calls. If you have a VOIP (Voice Over Internet Protocol) system, integrating SIP technology is simple, with flawless compatibility to take your VOIP phones to the next level.

Soft SIP Phones for Unified Communications Via Any Mobile Phone

Unlike traditional phone lines connected with copper lines to the Public Switched Telephone Network (PSTN), the SIP protocol functions as a soft or hard phone. The former means you can use your hosted VOIP service and SIP remotely on mobile phones, laptops and other devices using calling software wherever you may be.

PSTN is due to be made redundant in 2025, making it the perfect time to compare the advantages of leveraging your existing Wi-Fi infrastructure to transition to VOIP protocol and maintain the levels of connectivity you need with the option to have SIP software installed on all your main devices.

An IP phone requires a dependable internet connection but can connect as many channels as you need to your IP PBX, meaning you do not require PRI lines. There are multiple possibilities for businesses managing large volumes of calls or operating customer service functions. Alongside video calls and messaging, you can introduce call routing, auto-call responders and voicemail features without needing conventional desk phones.

Boosting Call Quality and Reducing the Costs of Your Phone Service Through SIP

Features such as zero-touch provisioning, Bluetooth compatibility and integrations with software like Microsoft Teams make SIP technology beneficial – but it doesn’t come at a significant investment cost. Conversely, a SIP phone system requires relatively straightforward commands while decreasing maintenance requirements and reducing communication expenses.

Standard hard phones are billed based on the duration of voice calls and the number of desk phones you use but deliver only basic phone capabilities. SIP devices operate differently, cutting back on international calling costs alongside general outgoings.

Unlike a regular telephone, a SIP phone needs minimal servicing and experiences almost zero disruptions, meaning business leaders can rely on their communication protocol to deliver. Since your IP phone software is connected to the internet through virtual trunks, if you need to scale up when your business grows, the process is easy – without time constraints or limitations on the number of devices or office workers you can add to your plan.

For more information about choosing the top SIP phones for your business or integrating SIP with your current VOIP service, please get in touch at your convenience.


Get in touch with us today, call us on 0330 102 7444.


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