SIP Trunking, your cloud-based telephone line

SIP trunking is similar to your fixed-line, only it’s delivered via the Internet and has cheaper rental and call costs. Take this important step towards adopting a Unified Communications (UC) strategy!

What is SIP Trunking?

A cost-effective alternative to ISDN that provides flexibility and continuity for your business

Request a Quote

Benefits of SIP Trunking

Reduced Telephony Costs

SIP Trunking is not expensive to install and immediately begins to drastically reduces the costs of making calls (UK and international) at about 25%. In addition, you can save up to 50% on rental costs.


Unlike traditional POTs (plain old telephones) and ISDN lines that require planning for peak at all times, SIP trunking offers on-demand scalability. You can still plan for peak at the enterprise level, and not just by office location.

In other words, you can increase or diminish the system’s capacity according to your needs. You’re in control. Add lines, take them away, split calls – it’s up to you! This is done quickly and without the contractual penalties of traditional services.


SIP Trunking is very stable and, therefore, very reliable.
This stability can be simply explained: SIP Trunking does not depend on power or circuit outages or other local events. It can automatically be rerouted to other offices, mobile phones, or virtually anywhere, in seconds. Should one connection fail, another can be used in its place.


Since SIP Trunking is so flexible, you can quickly transfer your communication systems when moving premises. All of this without having to change your telephone number!

Leverage ubiquitous broadband availability

Since SIP Trunks are delivered over IP, you can get more concurrent calls with a modern broadband circuit as opposed to ISDN30 telephone services.

Enables fast geographic growth

By using networking to combine voice and data, SIP Trunks can connect distant business locations, expanding your company’s geographic voice and data system.

Unified Communications (UC)

SIP Trunking is a fundamental step towards establishing an IP-based UC system that brings together voice, data, Instant Messaging, presence, and application sharing.

Increased productivity

SIP Trunking enables improved collaboration amongst your employees, seamlessly connecting multiple offices and mobile workers.


SIP Trunking can help tie together mobile devices and remote workers by enabling a blend of premise and cloud based services. Great for remote workers!


You have full control over how and where you want your calls delivered. All you have to do is contact us and we will make changes according to your needs!

Data and Voice Convergence

Data/voice convergence is possible, depending on your broadband bandwidth.

Number for Advertisements

SIP Trunking system is also perfect for advertisers! You may publish ads with different contact numbers. All of these numbers will be redirected to your office, but you will be able to know how many calls were made to each of them, allowing you to measure the effectiveness of your ads!

SIP Trunking Requirements

All you need is a good Internet connection, a PBX that supports VoIP, and router that is SIP compatible. Within hours you will be making VoIP calls and saving money!

Reliable Broadband Connection

SIP trunk connects your telephone system to your VoIP provider using your broadband connection. You will need a reliable voice quality Internet connection to avoid lack of call quality, dropped connections and other problems related to the VoIP service.

Telephone System that Supports SIP

You will need a PBX that can connect to the internet and use the SIP protocol to make calls over the internet.

SIP Compatible Router

High-quality VoIP requires a business-class router that is optimised for VoIP. The most critical feature is robust QoS (Quality of Service). QoS allows for prioritising VoIP traffic over other types of data traffic such as video, Instant Messaging, or FTP.

ISDN will cease by 2025
Are you ready?

Request a Quote

SIP Trunk Pricing

SIP Trunk
1 channel
30 days rolling contract
UK-based 24/7 technical support
Enquire Now