TeleSym contributes software to Intel demonstration: The device uses TeleSym’s softphone to do VOIP on Wi-Fi and can roam onto a GSM network without dropping the call. Intel Communications Fund has invested in TeleSym.
A lot of people are talking about this capability but the business case for a service that roams from cellular to Wi-Fi will be tough to work out. For example, pricing may be difficult. Using the Wi-Fi network should be cheaper then the cell phone network so it seems like operators should let users know when they are transferring from one network to the next but it’s not clear how they’d do that. Also, the cell phone operators would have to negotiate a good deal with Wi-Fi operators, otherwise why would they want to hand customers off of their network?