Following complaints made by 3 over Vodafone's advertising of mobile broadband, a spokesperson has said that users are happy with speeds.
Such is the assertion of BBC technology commentator Rory Cellan-Jones in a recent blog post.
According to Mr Cellan-Jones, 3 had taken issue with Vodafone's advertisement of headline speeds of up to 7.2 Mbps, which 3 said would be virtually impossible to achieve in a working environment.
The company is said to advise customers that practical speeds for mobile broadband services are like to be between 1 and 2 Mbps.
"A quick call to Vodafone reveals that they agree that 7.2 Mbps is very unlikely, though they claim that in exceptional circumstances users may get that speed in momentary bursts," Mr Cellan-Jones notes.
He asserts that 3 has lodged a complaint with the Advertising Standards Agency over the issue.
Elsewhere, a report in the Times earlier this month suggested that the rapid growth in the mobile broadband market could soon lay a challenge to conventional wired internet services.