Users of IP telephony service VoIP.co.uk were unable to place calls outside the company's network on Monday due to a technical glitch.
A technical representative of the firm confirmed there was an issue with passing traffic to the PSTN but said the firm was able to resolve the glitch "within the working day". He declined to specify the cause of the problem.
However, Reg reader Neil, who gave us the heads up about the glitch, said the problem was down to a fault in the connection between the data centres hosting VoIP.co.uk's kit, and therefore outside its direct control. As a result of the snafu, users of the service were able to make calls to other subscribers but not to the outside world.
VoIP.co.uk's issues follow hot on the heels of high profile problems with larger rival Skype, which was out of action for most users on both Thursday and Friday last week.
Skype blamed the problem on a bug in its software that meant its network became unstable as many clients logged on after the application of patches from Microsoft last week. ®