There are currently no errors

Submit an Enquiry

Or speak to one of our telephony specialists on freephone 0800 774 7773

Thank you for your enquiry. One of our representatives will be in touch shortly to discuss your requirements further.
Oops! Something went wrong while submitting the form.
This is the default callout text that will sit at the bottom of the form like this...

SIP Trunking for UK Business

Reduce the cost of inbound and outbound calls using flexible and resilient SIP Trunks - FREE office to office calls

Save £1000's By Switching To High-Definition SIP Trunks
We have over 1000 5 star reviews on trustpilot
chevron pointing down

Upgrade your phone system with SIP Trunks from £4.99/month

Enter your details to start your free quote today

How many staff / users are on your existing telephone system?

How many channels (The number of calls made/received concurrently)?

Which type of phone system do you currently have?

Do you require your existing phone numbers to be ported to SIP?

Thank you for your request

We will match your requirements to our approved suppliers and be in touch within 24 hours
Oops! Something went wrong while submitting the form.

What are SIP Trunks?

SIP Trunking is a form of telephony that connects your premises directly to the Public Telephone Network (PSTN) via the internet. SIP Trunks are compatible with all the leading PBX hardware which can be upgraded to work over our network. It is a very scalable and future proof option.

Why Should I Switch to SIP Trunking?

SIP Trunks - the fastest-growing telephony service in the UK and we are one of the UK’s leading providers. We connect your site directly into our network via an IP connection to carry all your voice calls and data at an extremely competitive price.

How can I get SIP for my Business?

SIP Trunks connectivity is utilised by thousands of UK businesses and is normally straightforward for us to provision for your organisation. Call one of our business connectivity experts today to dicuss the costs and the options available to you.

What is SIP Trunking?
“ Convert your legacy PBX system into hosted voice using SIP trunking. We have several packages available for a single or multi channel set-up. Contact me today for more information on SIP”
Speak to an Expert
Call Aaron on 0203 538 7045
<< Swipe through our plans & pricing >>

Plans & Pricing

SIP Trunking

Package Includes
Inbound Calls
Number Presentation (Masking)
UK Landline Minutes
UK Mobile Minutes
* An administration charge per site to set-up SIP trunks is required in addition we require your business IP address for this connection.
SIP
£4.99
£25.00 Connection Fee
PER
MONTH
Business Grade Router
SIP TRUNK ONLY
Broadband Speed
UNLIMITED
Business Line Rental
INCLUDED
Calls to UK Landlines
From 3p per minute
Calls to UK Mobiles
From 7p per minute
Request a Callback
SIP PLUS
£7.99
PER
MONTH
£20.00 Connection Fee
Business Grade Router
SIP TRUNK + BUNDLE
Broadband Speed
UNLIMITED
Business Line Rental
INCLUDED
Calls to UK Landlines
500 inclusive minutes
Calls to UK Mobiles
From 5p per minute
Request a Callback
SIP Max
PER
MONTH
£9.99
£10.00 Connection Fee
Business Grade Router
SIP TRUNK + BUNDLE
Broadband Speed
UNLIMITED
Business Line Rental
INCLUDED
Calls to UK Landlines
1000 inclusive minutes
Calls to UK Mobiles
1000 inclusive minutes
Request a Callback

Some of the PBX vendors we work with:

Mitel is a PBX vendor we work with. Business SIP TrunkingCisco is a PBX vendor we work with. Business SIP TrunkingAvaya is a PBX vendor we work with. Business SIP TrunkingAvaya is a PBX vendor we work with. Business SIP TrunkingSamsung is a PBX vendor we work with. Business SIP TrunkingPanasonic is a PBX vendor we work with. Business SIP Trunking

Why Consider SIP for your Business?

We have helped our customers to save an average £4,770 per annum by upgrading their PBX with SIP Trunks and increasing control over their Telecoms
By 2025, all UK business telephony will be hosted. SIP Trunks are the perfect solution to extend the lifespan of your existing PBX system and move to VoIP
Our specialist team are on hand at the point of installation and assist with the ongoing configuration. Our aim is to make SIP easy and hassle free
SIP Trunks are the perfect solution to extend the lifespan of your existing PBX system

The benefits of switching to SIP Trunks

SIP Trunks provide all the benefits of cutting-edge VoIP technology
Integrates with your PBX
SIP Trunks provide all the benefits of cutting-edge VoIP technology, without the need to replace the system you’ve already invested in
With SIP Trunks it is incredibly easy to move or divert fixed lines anywhere with your PBX
Network Coverage
With SIP Trunks it is incredibly easy to move or divert fixed lines anywhere, regardless of location, without any expensive call forwarding costs
Save on average £4,770 per year with SIP Trunking
Save 70% on Line Rental
Save on average £4,770 per year and have increased control over your Telecoms. Plus, our system is easy to use, flexible and upgradable at any time
Expand your business with SIP without boundaries
Ultimately Scaleable
Expand your business without boundaries. Add and remove users in a few clicks saving time and money - all in the comfort our your existing PBX system
SIP Trunking offers instant savings and is helping to fuel a full move to VoIP
The Best Deals in the UK
Call charges over SIP are often 30% cheaper when compared with traditional ISDN lines. The instant saving is helping to fuel a full move to VoIP
Remove the cost of calls on your PBX between departments with FREE on-net calls using a SIP Trunks
Free Calls Between Offices
Remove the cost of calls between departments with FREE on-net calls using a SIP connection. Your staff internal calls can often take 20% to 30% off your bill

Sip Trunks. Questions and Answers

What is SIP Trunking?

Session Initiation Protocol (SIP) Trunking is a service that uses the protocol to provision voice over IP (VoIP) connectivity between an on-premises phone system and the public switched telephone network (PSTN). SIP Trunks offer a more flexible and lower cost alternative to ISDN for inbound and outbound voice calls.

How resilient is SIP Trunking?

SIP Trunks are a service utilised by thousands of UK organisations, which is testimony to the reliability of SIP. For added reassurance when switching to us, SIP Trunking can even be used with existing ISDN connections to ensure the transition goes smoothly. Having a robust disaster recovery plan and backup facilities in place, can be crucial. With SIP it is incredibly easy to move or divert fixed lines anywhere, regardless of location, without any expensive call forwarding costs.

Improved call quality with SIP

Run voice and data across a single IP Network without any loss in performance. SIP provides increased call quality, competitive call rates and a more flexible service than your standard ISDN, plus it’s around 70% cheaper to operate.

SIP Trunking is more secure

If SIP Trunks are implemented correctly, then fraud should not be an issue. A properly configured SIP channel will allow you to handle your own connectivity via dedicated firewalls or a router with firewalls built in. Connectivity should be much more secure than it was previously.

Why Telecoms World for SIP Trunks?

Telecoms World will help you understand your business requirements, such as the volume of calls going in and out of your business, and how large the bandwidth requirement is to support this. Our experts are trustworthy business communications expert and are always available to support your business voice needs.

The benefits of SIP Trunks
  • Save money on call costs and line rental

    SIP offers a more reliable, cost-effective connectivity than ISDN over an IP connection. Save up to 25% or more on call costs and 50% on line rentals.
  • Free internal calls and great features

    Perfect for any business with multiple sites, not only saving on your line rental and call costs, but offering free internal calls within your company; along with a host of great features.
  • Scale up and down when you want

    SIP Trunks are ideal if you are moving, downsizing or upsizing and want to keep existing phone numbers. Scale up during busy periods and down again afterwards. You can add lines, take them away, split calls at any time. You are in control.

  • Built-in Business Continuity

    SIP Trunks can handle emergencies easily and are ideal for disaster recovery / a business continuity plan. Re-route calls to an alternative location quickly and easily.