Skype Internet Telephony Goes Cordless; Siemens and Skype Combine &lt;b&gt;...&lt;/b&gt; The adapter works with the recently launched Gigaset C340/345 and Gigaset CX340/345isdn, Gigaset S440/445 and Gigaset SX440/445isdn, Gigaset S645 and Gigaset SL440.