s martbridge Trading Solutions Pvt. Ltd.

After all, what enterprise wouldn't jump at the opportunity to save money on their mobile phone bills by sending their wireless calls over an IP network rather than a cellular network? But despite this attractive premise, current mobile VoIP technology has yet to evolve to the point where users can simply switch on their phones anywhere and expect to connect to a secure IP network.

The obvious reason for this is because mobile VoIP devices today are reliant upon Wi-Fi technology, which can offer quality voice service but which also has limited range and is prone to coverage gaps that make it problematic as a voice technology. These factors have so far limited mobile VoIP offerings to office environments or home environments where workers can securely connect to local hotspots to get a dedicated voice channel.

"I have talked to some enterprises that are using [mobile VoIP providers] Skype or Truphone and the problem they've told me about is that there are times when the services levels aren't where they want them for conference calls,"he says. "When you've got a wireline VoIP connection, you've got a gigabit of bandwidth. When you do it over Wi-Fi you obviously have a lot less.”