I currently have a Siemens DECT GAP Phone and a Beocom 6000 (MK 1) with a charging base. The system has worked great for a few years with the Beocom 6000 registered on the Siemens base - however the Siemens may be on its last legs. I have googled around and stumbled upon this site and from researching it looks like I can't purchase the current Beoline