Can anyone tell me (or point me to a resource) that accurately describes the various call flows for CUMA? What I'm trying to determine is this: Can a call from a client (say Cisco Mobile for example) be started(and continue) on the WiFi wireless network and then seemlessly handed over to a cellular call as the client walks out of the wireless range and can a cellular call be handed over to a WiFi wireless client when the client comes back in range?
If Cisco has a solution for this scenario, is it just CUMA that is needed or are there more appliances/software needed.
CUMA doesn't do anything from a wireless to cellular roaming perspective. It's predominantly a mobile presence client for Blackberry devices and now iPhone as well. It might be a part of your overall mobility solution but not what you need for this requirement. Take a look here here to get you started: