ICON SIP Services

The next level for your business communications

Your journey to SIP

Are you starting your journey to SIP because of the ISDN switch-off in 2025? 

Do you already have a SIP service?

Wherever you are in your journey, Maintel’s ICON SIP services, utilising our IP (intellectual property), means we can deliver unrivalled outcomes, foundations upon which your organisation can thrive on.

Where are you in your journey?

The start of your journey to SIP

If you haven’t started planning, or are waiting, to move away from ISDN don’t worry you’re not alone.

We can work with you to ensure a smooth transition.

Our expertise means we can also offer something unique – a connector between your ISDN and our SIP. It allows you to get all the benefits of SIP – such as saving up to 50% on your current cost, or access to new technologies – while you decide on how to best transition away from ISDN.

The switchover is done in seconds and apart from plugging in the connector, it’s zero-touch.

Already have SIP?

You might already have a SIP service but are looking at other provider options.

Taking our ICON SIP UK service delivers many benefits. Once connected we can help you leverage your investment in ICON.

We can deliver a host of services down the same infrastructure, such as unified communications, contact centre solutions, SD-WAN, security and much more.

Taking SIP to the next level - are you ready?

We use multiple SIP carriers in the UK, which we leverage to your advantage.  

We switch traffic across carriers to maximise cost savings, allowing us to offer some of the UK’s leading pricing models.

Utilising multiple carriers also allows us to provide a highly robust service and a range of business continuity services.

Going international

As the world gets smaller, UK businesses are increasingly looking to their SIP provider to help provide solutions for their international sites.

Maintel works with partners to provide services to most European countries and many other countries around the world.

The next level for your business communications

Whatever business voice challenges you are facing, help is at hand. 

Our ICON SIP services provide next-generation connectivity for multi-line inbound and outbound telephony.

The ICON SIP service provides all the traditional calling features of ISDN but with more flexibility and a commercial upside. And our Phoneline+ PSTN replacement service delivers a great alternative to traditional PSTN.

ICON Cloud Services

The ICON suite of managed services cover everything from telephony, unified communications, contact centres, mobile device security and connectivity – all expertly managed for you, by us.

We host the services within our own cloud, which has been designed from the outset to deliver real-time communications.

Discover cloud and managed services


ICON Communicate

Managed Services

Contact Us

Our expert team is readily available to help with any questions you may have. 

Connect with Maintel