Skype has announced the beta version of Skype For SIP for Business users.

SIP, Session Initiation Protocol, is the leading voice over Internet protocol used in business telephony networks globally.

Skype For SIP allows SIP PBX owners to make Skype's "low cost" calls to fixed phones and mobiles around the world, and to receive calls from Skype users directly into their PBX system.

Businesses will be able to offer Skype click-to-call from their websites and buy online Skype numbers to receive calls from those on fixed or mobile phone lines.

SIP users, phone system administrators, developers and service partners can find out more at