SIP Trunking Deals for Businesses

Our telecommunications team has more than 30 years of experience installing affordable SIP trunks for businesses across the South that are moving away from traditional phone lines.

Save Money with Business SIP Trunking

SIP trunking is one of the most direct ways a business can cut its monthly phone costs without changing its numbers, its handsets, or the way its team works.

Most businesses are still paying for multiple traditional phone lines when a single SIP trunk would do the same job for less. Each line is a fixed cost, whether it is being used or not. SIP trunking replaces those lines with one internet-based connection, and call charges are consistently lower, particularly for international calls.

You also stop paying ISDN line rental entirely, because calls run over your existing data connection instead. This works for small offices, replacing several lines at once; multi-site businesses, managing calls from a single platform; and remote teams, taking calls on any device using the same business number. Abbey Office Solutions is one local example of a business that made exactly this kind of move. For more information regarding some of the best SIP Trunking deals on the market, call us today on 01202 514 444.

What Is SIP Trunking?

SIP trunking connects your existing phone system to the public telephone network over the internet. Rather than running a separate line for each call, it uses your broadband connection to carry voice, video, and data through a single channel. Line rental costs go down, and your phone system gains flexibility it could not have with traditional lines.

Two terms worth understanding:

  • SIP (Session Initiation Protocol) is the industry-standard protocol for starting, managing, and ending voice, video, and messaging sessions over the internet.
  • Historically, trunk referred to a physical bundle of phone lines connecting a building to the telephone network. A SIP trunk is the virtual equivalent, without the physical infrastructure or the associated cost.

SIP trunks work with most modern phone systems without requiring you to replace hardware you already have. They are also a practical response to the switch-off of legacy ISDN lines across the UK.

SIP trunking works well alongside a hosted phone system, business broadband capable of handling the traffic, and a broader IT infrastructure that keeps everything running together. For businesses that want a single supplier covering all three, we handle that too.

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Why Upgrade to SIP Trunking?

SIP trunking suits most business phone setups, and the reasons businesses switch are consistent:

Pay only for the channels you use

Meaning idle phone lines become a fixed cost you no longer carry.

Keep your existing numbers if you move office

With no call forwarding costs or client notifications needed.

Remove the VoIP gateway your current setup relies on

Cutting hardware costs and maintenance overhead.

Adjust your channel count without an engineer visit

Or a new line contract as your headcount changes.

Connect SIP trunking to most modern phone systems

Without replacing handsets, wiring, or your existing setup.

Trusted SIP Trunking Support Across the South

Town & Country Communications has been helping businesses across Dorset, Hampshire and Wiltshire with their phones, broadband, and IT since 1992. As an independent provider, we source from across the market, which means our recommendations are based on what works for each business, not what is easiest to sell.

When you contact us about SIP trunking, we will want to understand your current setup first. We look at call volumes, the number of lines, and what happens if something goes down. From there, we can tell you whether SIP trunking is the right move, what it will cost, and what the transition looks like. For businesses that already have a system in place, a free bill analysis is available with no obligation to switch.

To request a quote or speak to our team, call 01202 514444.

SIP Trunking FAQs

SIP Trunking is a method of making telephone calls over your IP connection (utilising your data network), as opposed to over traditional phone lines. A SIP Trunk is a virtual phone line that connects your phone system to the public telephone network. It sends the data over a network, as opposed to an ISDN circuit.

 

You can use SIP Trunks instead of ISDN circuits to carry all of your telephone calls, or alternatively, SIPs can be used in conjunction with an ISDN circuit if required.

With SIP Trunking, you can leverage your existing data connection, which means that you don't need to spend money on ISDN monthly line rental. You can also expect to see reduced call costs too, as calls sent over the internet are much cheaper than traditional telephone calls.

SIP Trunking is also more convenient, as provisioning can be implemented instantly which means that you don't have to wait for circuits to be installed. SIP Trunking is also scalable, so you can have as many as you want.

SIP Trunking is also incredibly flexible as it allows you to market your business locally around the UK, means that you can take your numbers with you if you move and you will also be able to have your telephone calls diverted to an alternative site in the event of an emergency.

In order to set up SIP Trunking, you will require a SIP-ISDN Gateway to work in conjunction with your existing ISDN interface of your existing phone system. This ultimately acts like a translator between your SIP and the ISDN interface of your phone system.

Certain phone systems like the IP-PBX will already support SIP, negating the requirement for an additional gateway. The team at Town & Country Communications will assess your existing infrastructure and will provide you with a bespoke assessment of how we can help.

SIP trunking costs are dependent on a variety of factors, including equipment and setup costs, monthly required costs and the provider you decide to use. Typically, you will pay an up front cost to your SIP Trunk provider, and you may also need to pay for a SIP ISDN gateway too.

However, despite these initial costs, you can expect to save money in the long term via your connectivity (owing to the SIP data connection being cheaper than an ordinary ISDN circuit) plus you will also save money on the cost of your calls and line rental too!

Technical support can be obtained over the telephone via either ourselves or via your IT support team. Just give us a call!

We can preset filters and limits that proactively put in place call limits against specific users or areas. We can also implement automatic call barring if a particular calling threshold is breached.

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