Best SIP Trunk Providers in the UK- How to Choose?


Best SIP Trunk Providers in the UK- How to Choose?

Are you thinking of doing something extraordinary? Looking for some hassle-free experiences? Say goodbye to the poor ways of communication and welcome the SIP trunking system and get services from SIP trunk providers in the UK.

How to Choose the Best SIP Provider?

IP trunking is a flexible and versatile option for voice communications. If you decide to go with SIP, you have many providers to choose from. How do you find the best one for your business?

Here are some tips for selecting the best SIP provider:

  • Think about what you need
  • Ask around and get reviews from people
  • Evaluate your options

Benefits of SIP Trunking System

SIP stands for session initiation protocol that helps make calls over the internet. SIP trunking reduces some of the costs associated with long-distance calling and can be a good fit for businesses with multiple offices. It also gives you access to additional functionality like advanced call routing, voicemail transcription, video conferencing, etc.

Here are some of the benefits of the SIP trunk system.

Best SIP Trunk Providers in the UK- How to Choose

  • Unified communication

The SIP trunk system uses the same IP address for all your needs. You don’t need to get different services and pay separately for them. Let’s just say you need to make multiple calls simultaneously. You don’t have to find another service for that. All you have to do is increase the bandwidth of the internet in the SIP system. Isn’t it easy?

  • Cost-effectiveness

The cost is predictable, and you don’t have to worry about the extra charges. You don’t need to pay for the lines you are not using. It is user-based, and it’s up to you how many calls you will make. Moreover, international calls are not expensive.

  • Increased Productivity

The organization works with a procedure, and every employee has a specific role to perform. If your connection gets lost, you will surely not make it. This SIP system increases the productivity of every employee.

List Of SIP Trunk Providers

Many SIP trunk providers in the UK offer incredible services for businesses of all sizes. Whether you are running a start-up or have hundreds of projects to handle, you can get benefits of all types. You need a SIP trunk provider that connects your phone system to the public switched telephone network (PSTN) to set up a SIP trunk. Here are some of the top SIP providers in the UK:

  1. Xinix
  2. BT
  3. Gamma
  4. Spitfire


The Best SIP provider in the UK is Xinix, which operates its infrastructure and provides services at the best possible rates. It also offers a range of unified communications (UC) services for the business market, including SIP trunks, hosted PBX services, and mobile connectivity.

Its SIP services are excellent for international calls and affordable packages for any business. 


The reliability is guaranteed. They have a complete system of saving and channelizing data that has built strong trust in the market.


There are no specific contracts, and you can cancel the subscription.


The rates are affordable such as the starting price is £4 per month.

One Bill

No headache of paying different bills for different services. Get done with all the expenses at once.

International Calls

They offer suitable packages for international calls at a low price.

Must Read : How SIP Phone Systems Will Boost Your Business ?


BT is the UK’s provider of landline and broadband services. The BT Business SIP Trunking offering is available in three packages: standard, premium, and premium plus. All three packages include unlimited voice minutes to UK landlines and mobiles and unlimited calls between BT customers on different sites.


Gamma is a UK-based SIP trunk provider that offers some of the most flexible packages, including add-ons for call recording and queuing. This can be useful if you have lots of staff answering calls or need to keep track of who called when. Gamma’s also got a unique mobile app that lets you make calls using your business number from your phone.

  • SIP trunking
  • Cloud PBX
  • Analog lines


Spitfire has a variety of products and services, including SIP trunks, ISDN lines, hosted SIP telephony solutions, and more. It also provides Cloud PBX solutions via its partner Xarios Technologies.


Zen Internet has been around for 25 years, and its VoIP offerings, like its other services, are highly scalable. However, unlike Gamma, Zen has fixed rates so that you won’t deal with any unexpected charges. Zen also offers excellent customer service; it’s the go-to internet provider for the Guardian newspaper.

TalkTalk Business

TalkTalk is best known as an ISP, but it offers a range of SIP services for businesses. TalkTalk’s most significant advantage is its low cost; it’s one of the cheapest providers and will serve small businesses well. 

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