Using VPNs for unified communications access can be frustrating for users and IT. Session border controllers offer improvements in security, economy, and usability.
If you're like me, you're likely reading this on a mobile device -- which is quite appropriate, since it was written moving at 500 mph on a cross-country flight. Mobile devices have changed almost everything we do, and users are depending on their enterprise IT teams to enable their mobility and communications needs.
IT departments everywhere are being pressured to open voice over IP networks to mobile and teleworking clients, including softphones, employee-owned smartphones, and an increasing number of video-capable devices. Sales of laptop computers are declining as increasingly powerful mobile and tablet devices gain market share.