voip pbx's

snom has introduced their new voip box at cebit. it's a 50 user sip ip pbx in a compact appliance. it doesn't look like there's any place for expansion cards, but it has no moving parts and a very small footprint. we will be publicly demonstrating our packetbox appliance at telecom city. it's a larger device, also available in 19" solution based on asterisk. it offers many additional modules such as groupware, ipsec, anti-spam and anti-virus solutions. i'll also try to attend von europe and astricon europe this year although only as a visitor.