The iPhone will be capable of making voice over IP (VoIP) calls using the Jajah Mobile Web service, it has been claimed.

A website this morning published a news item, describing the link between Apple's new phone and its service as "kind of official".

It seems Jajah's Mobile Web service will allow iPhone and smartphone owners to make these calls from within the mobile's built-in web browser to any number in the world - no software download is required.

All an iPhone user will need to do is type the address into their browser, and then enter their user name and password in order to be able to call people from within the browser.

The Jajah blog claims: "We are going to bring Jajah Mobile to the iPhone as soon as it becomes available.”

The blog continues: "It’s not every day that someone changes the landscape of an industry with a single product announcement, but Apple has become known for it. The iPhone promises to change the way we think of mobile computing and communication the same way the iPod changed the way we think about music."