Vodafone to correct billing error

While users won't get stung with retrospective charges, the change will see more usage counted against clients' data caps. The changes apply to P2P apps, VoIP (Voice over Internet Protocol) traffic, and "services that require a personal login" like Hotmail and Internet banking.

As one wag put it on Twitter, Vodafone has to all appearances discovered that its mobile broadband customers at times use traffic that traverses ports other than Port 80.

Vodafone Australia has been plagued by a series of publicity disasters, with users tagging the carrier "Vodafail" for poor network performance, partners allegedly exposing clients' personal information on store-front computers, and a class action lawsuit resulting from unlimited plans that turned out to generate more traffic than its network could handle.

This IDG Innovation Services results looks at how CIOs and IT leaders recognize the business impact of application performance.