IBM has developed a spam message testing and analyzing system for China Mobile, one of the world's largest mobile operators, to help the company track the message sending habits of its users.

According to local media reports, China Mobile is using the new system in answer to a campaign launched by the Chinese government against unwanted mobile short messages.

Li Shigong, chief technology officer of IBM Greater China, reportedly said that with the system China Mobile will focus on analyzing message transmissions instead of content filtering.