I just bought a Siemens 4215 expandable cordless phone system.  I'm 
fairly happy with it, except that it doesn't seem to support multiple 
voicemail boxes like the description on Amazon.com's site says it does. 
  So I was thinking, there are several companies that make cordless VoIP 
phones, and the geek factor is high.

Has anyone used any of the free call manager software packages with 
802.11 VoIP phones?  I have a wireless access point already, so all I 
would really need is to get a POTS gateway and set up some software.  
Something to handle multiple voicemail boxes would be nice, and the 
ability to transfer a person I'm talking to straight to voicemail would 
be a definite plus.  Does anyone have any experience with this?

Jay