It's not really a great surprise but BT's next-generation 21CN broadband network isn't going to move the UK into the next level of high speed access.

To mirror this fact one of the UK's leading, although un-named, ISPs have said that it has worries about the national rollout planned for later this year, both on the technical side and actual implementation. It claims that BT isn't really sure on what is happening in it's own organisation.

BT say that although only a small number of ISPs have taken part in trials, any information is available to everyone and it's "was one of the biggest ever consultation projects" before things started to get rolling with the recent trails.

The ISP also has doubts on any claimed speed advantages of 21CN although BT have continued to say that it "is fair" to tout the service as an 'up to 24Mbps' connection it was up to Ofcom to tell it to do different, "If Ofcom wants to get people together and create an industry agreement on how to market broadband, we'll welcome it." it said.