High-quality, Low-cost SIP Trunks

If you’re looking for a way to upgrade or convert your traditional phone systems to a more modern and cost-effective solution, then you’ve come to the right place.

Our SIP Trunks offer a simple and easy-to-use alternative to traditional phone lines. By using VoIP technology, our SIP Trunks provide crystal-clear voice quality, improved reliability, and cost savings for your business. And with our call management features, you can control your calls like never before.

We offer a wide range of SIP products, including phone lines, phone systems, and call management tools, so you can find the perfect fit for your business.

  • Phone Lines
  • Phone Systems
  • Convert Traditional Systems
  • Call Management Solutions

Make the Move to Modern Phone Calling


Business Phone Lines

We can offer your business fantastic call rates and a wide selection of unique telephony functionality.

Our lines have been designed to replace traditional landline services with SIP Trunks, using your broadband to provide high-quality calls, and extensive call features, for an excellent price.


Cloud Phone system

Unite multiple offices, multinational departments, and the whole business under a single phone system.

Align business communications internally and externally with in2pbx, our Cloud PBX. It requires a low initial investment, and you’ll benefit from a cost-effective, carrier-grade voice network.


Call Management

For more complex solutions, we can combine in2tel network capabilities with either Call Centre software or call management to create a bespoke comms solution. Whether it’s call management, back-end system integration, or a call centre setup, we’ll combine the correct technologies with some clever know-how from our end, for the perfect telephony solution.

Our SIP telephony is perfect for business offices, remote working, and call centres.

Convert Traditional Phone Systems to SIP

If you already have an expensive traditional phone system in place, you might be hesitant to make the switch to SIP. After all, replacing an entire phone system can be a major undertaking, both in terms of time and money. But the good news is, you don’t have to replace your entire system to enjoy the benefits of SIP.

Rather than change your phone system, we can help you maintain your existing setup and convert your phone calls from analogue to SIP Trunks. With analogue calls being phased out within the next 2-3 years, it’s important to start planning your roadmap now.

So, if you’re looking to upgrade your existing phone system but don’t want to replace the whole thing, converting to SIP might be the perfect solution for your business. With in2tel’s expert guidance and support, you can make the transition to SIP with minimal disruption to your business.

The Benefits of in2tel SIP Trunks

Benefit from immense call routing and features

Portal Management

Allow your users to operate from anywhere, with a simple browser log-in.


Record or upload your greetings, with easy access from the portal.

Live Statistics

Review every detail of any call and ensure your employees are providing the best level of service to customers.


Automatic Alerts

Set instant alerts on any of the system’s features, to ensure you always operate at full capacity.

Mobile Converging

Ensure your remote workers can communicate with ease. Add any modern mobile device to your system.

DR and Fraud Protection

In the event of a disaster, your calls will be instantly redirected with no drop in service.

Block outbound calls and specific number types and add spending caps to your bills.

Trusted by Over 3000 Companies


Make the move from ISDN

Why Choose SIP Trunks for Calling?

Unparalleled reliability delivered by redundant routing

Your calls are supported by the backbone of in2tel, a sophisticated communications network, powered by software. Securely connect to a redundant carrier-grade VoIP network, all from one platform.

Gain calling insights

Optimise your communications at scale. Using in2tel voice insights data, you can analyse call performance from an aggregated view down to granular details of packet loss, jitter, or PDD.

Global reach with a local presence

When you are ready to expand your presence globally, do it with confidence. Make your entry into new markets with a familiar face — or area code. in2tel has extensive prefix coverage, enabling you to expand easily and still provide an authentically local feel.

How to Choose the right SIP Trunk Provider

When choosing the best SIP trunk provider for your business, there a several factors to consider:


Does the SIP trunk provider run its own network, or is it rebranded from a larger partner? This can heavily affect the price you pay for calls and the level of support you will receive.

Competitive Costs

How does your SIP trunk provider stack off between cost and quality? Cheap SIP trunk packages often limit the options to quickly scale up or down or offer the minimum level of support.


What service level agreements (SLAs) does the provider offer? How long will you have to wait for serious issues to be dealt with and will these be fixed at any time of day?

Fraud Protection

Does the provider offer the right protection? SIP providers can put spend and dialling limitations on their customer’s accounts so that even if there was a security breach, costs would be capped.


Frequently asked questions

SIP Trunking questions

What is a SIP trunk?

Our SIP trunk product is a combination of SIP trunk technologies and a platform that allows the transfer of calls. Our platform allows your business to make calls over your Internet connection, rather than traditional ISDN lines.

For more information, read our SIP Trunking and SIP Channels article.

How many SIP trunks do I need?

One SIP trunk is all your business needs to run all your communications. Once your trunk is set up, you can scale up or down concurrent call capacity by adding or removing usage channels or choose pay-per-minute billing for unlimited concurrent inbound call capacity.

What are the benefits of SIP trunking?

SIP trunking has many benefits over traditional business telephony systems, including scalability, cost savings, and integrations.

What is the difference between SIP and VoIP?

VoIP is a broader term used to describe any phone call made over the Internet. When looking for an alternative to ISDN they generally are interchangeable.

SIP is a signalling protocol, used to control and support voice, video, and text sessions over IP networks.

General information

What Internet connection is required for SIP

To run SIP effectively, you require a reliable broadband connection of a certain speed. This is based on the maximum number of concurrent calls your business has each day.

Check out this VoIP speed requirement article for specific bandwidth requirements.

Let us Try Lowering Your Bills

If you’d like us to review your current phone bill. Please send it as an attachment to sales@in2tel.ie. We’ll have one of our experts give you an honest answer and if we can save you money.

Let’s get started
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