Carrier VoIP

Making the most of VoIP.

VoIP has changed quickly from being an aspiration to become a vital element in the way we communicate in the 21st century. And Colt has been at the cutting edge of that process, delivering high quality services to all kinds of operators eager to make the most of the opportunity that VoIP represents.

We are one of the only European players that can offer a wholly owned and managed fibre high speed network in 22 countries across the continent. Not only that, we launched our new fully resilient and secured IMS network, and we still have got great connections – we provide you with access to more than 400 voice interconnections with national and international carriers and mobile operators.

Of course, we can offer call termination and quality call completion to all destinations within the 18 countries in which we operate, as well as to all other destinations right around the world. And we offer the protocols that give your customers the assurance that their calls will reach their destination: namely, SIP and H.323.

Our record in the wholesale voice carrier business goes back more than a decade and we are proud of the fact that our competitors cannot compete when it comes to coverage and service. We are available to you 24/7, in your language.

The fact that we can deliver carrier grade call termination, wholesale routing quality, and a fast and flexible implementation of the link between your network and ours via the Internet means that you can exploit the VoIP opportunity from everywhere in Europe and rest of the world, with technical certainty… and without having to make any capital expenditure.
VoIP makes sense in so many ways.

Delivering quality VoIP – now

Colt has designed its new IMS network to achieve a very high level of resilience and security to maintain voice services at their excellent existing performances. It is based on its fibre European high performance IP backbone. Thanks to this new IMS network, Colt is now able to assist its wholesale customers in their VoIP growth or migration to NGN – IMS architecture, with the scalable and future proof Carrier VoIP product.

We have designed our service to give forward-looking organisations the chance to deliver VoIP that works seamlessly – and we achieve that by using the VoIP protocols SIP (Session Initiation Protocol – IETF) or H.323 (ITU). So, if you want to move away from using C7 ports, or do not have any in the first place, then you can make the most of the VoIP opportunity now and into the future.

Because you can implement VoIP easily and swiftly through the public Internet without the need for any kind of physical interconnection, you can spend your capital budget on other equipment, whilst we get on with ensuring you can deliver VoIP seamlessly, and at the highest levels of quality.

Our experience in the wholesale voice carrier market is renowned – we have had more than a decade of successful operation – and our fibre high speed network spans 22 countries in Europe. We offer more than 400 interconnections with national and international carriers and mobile operators – in fact you get a direct connection to all the major mobile players through Colt.