Radioframe is touting its indoor GSM system as better than voice over WLAN: Radioframe sells a platform that extends cellular coverage inside an office building and connects to the office PBX so companies can use their cell phones inside the building. When users are in the building, minutes are cheaper than outside on the wide area cell network.
The company's CEO argues that even though usage of the WLAN in the building doesn't cost, the handsets are so much more expensive than cell phones that it makes more sense to use a system like Radioframe's. I did a story a while back on voice over WLAN and found that the handsets cost around the same as standard wired office phones. So the difference could come down to a decision about whether a cell phone offers the same features and functionalities that workers typically want on their phones in the office. Plus, the Radioframe CEO didn't discuss how the costs of deploying and maintaining its network compares to deploying and maintaining a standard WLAN.