jump to navigation

BT to move to an all IP network by 2025 May 1, 2015

Posted by Dominic Black in Uncategorized.
Tags: , , , , , ,

After much discussion in the industry regarding the end of life of the ISDN and PSTN networks, BT have finally announced that “by 2025, all their customers will be using IP Voice.” This was revealed in BT Group’s Q3 2014/15 results.

Gavin Patterson, BT Group CEO, highlights the future of the BT network on the analyst call where BT envisages their network will be a single IP core network replacing all legacy networks and platforms. This will allow all BT customers to have a ubiquitous experience on all devices, either inside or outside, utilizing the BT mobile network (presumably acquired by from the upcoming EE deal) and the expansion of their fixed IP network.

For BT, this convergence onto the IP network will require them to migrate all of their customers off the ISDN network at some point in the next 10 years. Although this may seem like a long time, the process will take a lot longer then expected and Cavell expects that this will start relatively soon to end of life the service by 2025. BT will be moving fast to ensure that they keep all of their customers on their service but the forced move off ISDN may make some customers look elsewhere for their voice service.

As of August 2013, there were 3.2 million ISDN channels in the UK and although BT do not have all of these on their network a significant number of ISDN customers in the UK now have a date from which they will no longer be in service and customers who are using them will be looking to move.

For the many service providers selling SIP in the UK, there is now a huge opportunity to migrate ISDN customers over to their SIP service as the network will force them to move at some time in the future. There are a large number of potential channel partners not selling SIP who have continued to sell legacy voice products to their customer base who will now be looking for a SIP Provider to partner with. Cavell has assisted many UK service providers on the positioning, marketing and go-to-market strategy of SIP and Hosted VoIP products and will be tracking the developments of this closely.

To hear full details of BT announcement you can go to the BT announcement at the following link: the actual relevant section of the webcast is after approx. 17 mins https://event.webcasts.com/viewer/event.jsp?ei=1051301



1. Litesp33d - May 10, 2015

IMHO BT are actively hindering this process because of the revenue they generate from ISDN. Many UK industrial estates have limited/no access to fibre and because BT, through their Openreach monopoly, have almost total control of this they can engineer this to their advantage.

They have also become the de facto monopoly provider to BDUK. Very clever. Imagine a fibre roll out with projected costs £30 million. Who did the job estimates? BTO. Local Authority contributes £7.5 million. BDUK contributes £7.5 million. BTO claims to invest £15 million. But actual cost to BTO materials and labour less than £5 million. What a racket.

2. Changeover to VoIP – Use the opportunities to your advantage - Talkbase Blog - May 4, 2017

[…] have made their plans public, including Swisscom (2017), Deutsche Telekom (2018), Orange (2020) and BT (2025). In future, fixed network, internet and TV, and all related services will operate via […]

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: