Internet service provider O2 has launched a new "amnesty" campaign in Manchester to encourage mobile broadband users to switch providers.

The mobile broadband supplier is offering customers in the city with rival providers the chance to swap their existing 3G dongle for a free Pay & Go equivalent from O2.

It hopes that the promotion, which is available from all of its stores in Manchester until July 30th, will prompt consumers to switch to its own mobile broadband services.

Jonathan Earle, Head of Pay-Monthly at O2, said: "We believe that O2 Mobile Broadband provides the best-quality service available but we don't want to just say it, we want people to try it for themselves.

"With O2's mobile broadband amnesty we are giving other mobile broadband users the chance to give us a try without having to commit to a lengthy contract."

Earlier this month, O2 was named as the best fixed broadband provider for consumers at the Internet Service Providers' Association (ISPA) Awards.