I have several of them - I have been looking for newer firmware, period, but haven't found any to speak of. They are not that compatible with current network protocols and can be difficult to set up. Once you get it on the network and know its IP address you can use the WBM, which is actually fairly decent.
Don Bruechert, Voice Comm Analyst II
CareTech Solutions @ Holy Family Memorial
Manitowoc, WI, USA