This latest collaboration is part of Intel and Skype's partnership announced at the Fall Intel Developer Forum last August.
The limit of Skype's latest version, released last month (see Skype 2.0), will remain at five callers for PCs using single-core chips and Advanced Micro Devices' dual-core Athlon 64 chip.
Skype's Interent-calling software allows PC users to make free voice calls to other Skype users over the Internet and to call cell phones and landlines for a fee.
The 10-way calling feature will be exclusive to Intel's chips for a limited time, according to Henry Gomez, Skype's North American GM. "Skype is not releasing the time frame for the expiration of the exclusive agreement", he said.
He declined to comment on whether the company tested Intel's dual-core chips against AMD's dual-core chips, but said Skype was very satisfied with the performance of the Intel chips.
AMD did not comment the story yet when contacted by the CDRinfo news team.