Skype is adding features to its internet telephony software through a collaboration with Intel based on the chip maker's dual-core processors.

The first offering is a conference-call feature that allows up to 10 people to participate at the same time, the companies have announced.

To take advantage of this feature, users must be working with Skype version 2.0 and have either a desktop computer with the Intel Pentium D, Pentium Extreme Edition or Viiv processor, or a laptop with Centrino Duo.

The conferencing feature takes advantage of the multitasking capabilities of Intel's dual-core processors.

Later this year, Skype plans to offer a video-calling feature based on the dual-core technology.

Skype, which was acquired last year by Ebay, offers a range of VoIP (voice over IP) services, such as free computer-to-computer calls, as well as premium services for calls made from the PC to the public network or the other way around.