Make Skype and regular calls from your landline phone
		Receive Skype and regular calls from your landline phone
		Call waiting and switching between Skype and regular calls
		Call Conferencing with up to 5 callers
		Voicemail with customizable outgoing message
		Speed Dialing for phone numbers and Skype accounts
		SkypeOut calling fully supported
		Ringtone selection for incoming calls
		Country code dialing preference
		No external power required
		Echo-cancellation technology
		Patent pending technology
		Callbox helps eliminate most phone call costs

System Requirements
IBM PC Compatible Computer, 800 MHz or Faster Processor,
128 MB RAM, 15MB Available Hard Disk Space, CD Drive, USB Port.

Operating System
Windows 2000 (SP4) or Windows XP

Also, take a look at Callbox Skype Gateway Pro with it's extended feature set including making Skype calls from a mobile phone.