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SIP Trunking Deals

Best SIP trunking service for your business

As a Leading SIP trunk provider with over a decade of experience in the industry, Xinix offers an affordable, reliable, and high-quality SIP trunk service.
With the help of SIP trunking, you will be able to operate your on-site IP PBX system from anywhere at any time.

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Unlimited concurrent calls, crystal-clear voice, and 99.99% uptime guaranteed.
Sip Trunking

Discover why we’re top-rated

Choosing the right phone service for staying connected with world makes a big difference.

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Reviews Io
4.9/5
780+ reviews
Trustpilot
4.8/5
560+ reviews

plans

SIP trunking plans built
for modern teams

Pick a plan and get started in minutes.

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ShareSIP

{n} channels: {price_channels} {billing_text:paid annually|/mo}

£2.99 £4.99 /month
Ā£4.99 /month

24 months term / {price_annual} paid annually.

24 months term.

No inclusive minutes Perfect for short term projects and testing.

Everything in ShareSIP:

  • UK landline 1p/minute
  • UK mobile 3p/minute
  • Call set-up only 2p/minute
  • Call recording Ā£0.002/minute
  • Emergency calling
  • Keep your existing phone numbers
  • Consolidate line usage across multiple sites
  • Highly scalable at short notice
  • Fully tested with leading manufacturers including: 3CX, Asterisk, Avaya, Cisco, Epygi, IPCortex, Mitel, Panasonic, Patton and more…

Share1000

{n} channels: {price_channels} {billing_text:paid annually|/mo}

£4.99 £6.99 /month
Ā£6.99 /month

24 months term / {price_annual} paid annually.

24 months term.

No inclusive minutes Perfect for short term projects and testing.

Everything in ShareSIP:

  • 500 UK landline minutes
  • 500 UK mobile minutes
  • Call set-up only 2p/minute
  • Call recording Ā£0.002/minute
  • Emergency calling
  • Keep your existing phone numbers
  • Consolidate line usage across multiple sites
  • Highly scalable at short notice
  • Fully tested with leading manufacturers including: 3CX, Asterisk, Avaya, Cisco, Epygi, IPCortex, Mitel, Panasonic, Patton and more…

Share4000

Most Popular

{n} channels: {price_channels} {billing_text:paid annually|/mo}

£6.99 £9.99 /month
Ā£9.99 /month

24 months term / {price_annual} paid annually.

24 months term.

No inclusive minutes Perfect for short term projects and testing.

Everything in ShareSIP:

  • 3000 UK landline minutes
  • 1000 UK mobile minutes
  • Call set-up only 2p/minute
  • Call recording Ā£0.002/minute
  • Emergency calling
  • Keep your existing phone numbers
  • Consolidate line usage across multiple sites
  • Highly scalable at short notice
  • Fully tested with leading manufacturers including: 3CX, Asterisk, Avaya, Cisco, Epygi, IPCortex, Mitel, Panasonic, Patton and more…
All prices exclude VAT. Volume discounts apply for multi-year terms. Number porting of your existing lines to SIP is free.
Out-of-bundle calls (if not on unlimited) are billed per minute at competitive rates.

Product Options

Expand your system as needed

Add add-ons at the checkout.

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UK Numbers

Starting at £2 +vat **
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CRM Integrations

Starting at £8 +vat **
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International numbers

Starting at £5 +vat **
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Number Porting

Starting at £20 one off +vat **

Feautures

SIP trunk feature highlights

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Concurrent call control
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Codec support
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Emergency calling
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Integration with MS teams
Print
Fax over IP & DTMF
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Global reach
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Superior call quality
Money
Massive cost savings
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Scalable & flexible
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Keep your numbers
Route
Built for reliability
Layers
Easy management

Destinations

Popular Destinations

Tariffs are indicated in £/min

International Rates

Australia Australia 2.5p
Hong Kong Hong Kong 2.6p
Singapore Singapore 1.3p
Canada Canada 1p
Luxembourg Luxembourg 2.5p
Spain Spain 1.3p
Denmark Denmark 1.3p
Netherlands Netherlands 1.9p
Switzerland Switzerland 2.6p
Germany Germany 1.3p
Pakistan Pakistan 7.2p
United Kingdom United Kingdom 1p
India India 2.5p
Poland Poland 1.2p
United States flag USA 1p

How it works

Xinix switch: how it works

Business SIP trunking

What is SIP Trunks?

Business SIP trunking is a service that enables your company to operate a selection of telecommunications systems over your IP network. From cheaper international call costs to improved business flexibility, the benefits you get with Sip Trunks is endless. Incorporating a Disaster Recovery strategy to give access to an increased quantity of numbers, Business SIP trunking from Xinix can enhance the way your business stays connected.

Our business SIP trunks represent the latest in telecommunications technology. They are a more affordable alternative to ISDN30 line rental and internet services. While retaining a level of performance that is high in flexibility, it can be tailored to your own specific needs.

We are a vastly experienced SIP provider in UK. Our knowledgeable engineers have the expertise needed to help you with all your SIP Trunk needs, including any questions you might have in the first instance.

Fully Managed BY XINIX

Why Xinix SIP trunks?

  • We operate our own core network infrastructure to support SIP trunk services.
  • We can provide telephone numbers from areas throughout the UK, routing them through to a single office location.
  • We deliver compatibility with a wide range of SIP devices from a number of manufacturers.
  • We supply a full array of components to connect your system via SIP trunks, taking responsibility for delivering your service from the day you order.

In addition, we provide a managed service to cover IP connectivity and number management, ensuring that business SIP trunks from Xinix deliver a complete communications solution.

Xinix logo

Xinix Switch

Benefits of Xinix Switch

Reliable UK SIP Trunking
Benefits of Xinix Switch
Xinix logo
Disaster Recovery
No downtime. No disruptions.
No Downtime No Disruptions
The Numbers You Need
Be local. Operate nationally.
Be Local Operate Nationally
Quality Assured
Call quality without compromise
Call Quality Without Compromise

FAQ

You ask, we answer

Session initiation protocol (SIP) is a communication protocol of VoIP technology. This enables initiation, maintenance, modification, and termination of real-time sessions. In addition, it allows the transmission of multimedia along with voice communication. This is the technology that enables a virtual connection between an organization’s private branch exchange (PBX) and public switched telephone network (PSTN) via the internet. SIP is essentially the replacement of primary rate interfaces (PRIs) or dedicated phone lines as with the traditional phone system.
The term ā€œSIP trunkā€ refers to a dedicated physical line that establishes a connection. this originates from circuit-switched telecommunications and serves a similar task as a circuit-switched predecessor. However, the key difference here is that the connection is virtual as it is established over the internet. Simply put, SIP trunks eliminate the need for dedicated phone lines. Typically used for voice communication, SIP trunks can transmit multimedia and other real-time communication services.
SIP trunking enables the user to connect multiple channels to the private branch exchange (PBX) system. Therefore, it enables the instant provision of global voice connectivity via VoIP communication system.
Organizations can extend VoIP infrastructure with SIP trunking and bypass the need for an IP-PSTN gateway. This is possible because of the simultaneous transmission of many signals to connect nodes in a communications system.
SIP trunking streamlines business operations. It makes use of modern PBX, eliminates VoIP gateways, and can integrate with other tools. This is how SIP trunking ensures optimal call quality and ensures streamlined business operations. SIP trunking call manager provides the user with an online admin portal making management quick and easier.

The only unified communications solution you need

Affordable VoIP and mobile services designed for personal use, giving you clear, reliable home communication on any device.

Join the Xinix ecosystem

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