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what is sip trunking

What is SIP Trunking?

No matter the size, businesses are always looking for ways to improve efficiency and cut down on unnecessary costs. So, it’s all about finding reliable telecom services that can help you through the working 9 to 5. And that includes asking the right questions. Like, “what is SIP trunking?”


Fibre Telecoms are a communications service provider like no other and we help small businesses and equip them with the latest technology to keep up with the big competitors. Find out all about SIP trunking here and how our telecom services can help your business grow. 


What is SIP Trunking?

One of the “protocols” you might utilize for VoIP phone systems is SIP trunk lines. It offers a mechanism to transform voice signals into data that can be decoded by devices used by a caller. Similarly, this is how HTTP works with internet pages.


Session Initiation Protocol (SIP) is essentially a means to establish and terminate connections for speech and data transfers over the internet. In layman’s terms, SIP trunk lines are virtual phone lines to enable phone calls over the internet, to anyone with a phone number. Modern SIP trunking describes a virtual connection that uses an internet connection to connect your PBX to the public switched telephone network (PSTN).

How SIP Trunk Lines Work

SIP Trunking is the digital equivalent of an analogue phone line. You can make local, long-distance, and international calls over the Internet by connecting one, two, or twenty channels of your PBX to SIP trunks, which a SIP provider can do for you. 


If your business uses an on-premises PBX, a SIP communications service provider can establish a connection with you. The telecom companies (UK) will let you make outgoing calls, using your present setup without any limitations on the number of simultaneous calls.

Why Use SIP Lines?

SIP has a lot of advantages for your business; with the reduced communication cost being one of the most significant.


In many cases, the monthly subscription for each SIP channel includes unlimited local and long-distance calls to the majority of the UK. The best SIP providers also let you provision channels on-demand, so you only pay for the channels you really use right away and can simply expand your channel count at any moment. It is important to find a reputable telecom company (UK) provider that can cater for you and your company’s needs.


Other benefits include:

– Network consolidation

– Integrated business continuity features

– Unified communication elements, such as video, presence, application integration and instant messaging. 


For more information on what is SIP trunking, check out our services page here

What Industries Can Benefit From SIP Trunking?

Pretty much any business can benefit from the integration of SIP trunking within a working environment. If a company is relatively new to business phone systems or switching from the outdated analogue, you will have a choice between on-premise IP PBX or a fully cloud-hosted PBX system. However, there are certain companies that could vastly benefit from SIP.


Call centres that receive a significant call volume will appreciate the flexibility and cost-effectiveness that SIP trunk lines provide. When there is a high amount of phone calls, businesses may need to run a more complex PBX system supported by SIP services. 

Our Communications Service Provider

Here at Fibre Telecoms UK, we want to challenge the status quo and think different to our competitors. Whether it’s our state-of-the-art business phone systems or answering the question: “what is SIP trunking?” We are here to help. 

For more information on our services, or to receive a quote, fill in our online form. Or, why not follow us on LinkedIn and stay connected to our network?