Mobile virtual private network

A VPN maintains an authenticated, encrypted tunnel for securely passing data traffic over public networks (typically, the Internet.) Other VPN types are IPsec VPNs, which are useful for point-to-point connections when the network endpoints are known and remain fixed; or SSL VPNs, which provide for access through a Web browser and are commonly used by remote workers. Makers of mobile VPNs draw a distinction between remote access and mobile environments. A remote-access user typically establishes a connection from a fixed endpoint, launches applications that connect to corporate resources as needed, and then logs off. In a mobile environment, the endpoint changes constantly (for instance, as users roam between different cellular networks or Wi-Fi access points). A mobile VPN maintains a virtual connection to the application at all times as the endpoint changes, handling the necessary network logins in a manner transparent to the user. ==Functions==

The following are functions common to mobile VPNs. ==Management==

Some mobile VPNs offer additional "mobile-aware" management and security functions, giving information technology departments visibility and control over devices that may not be on the corporate premises or that connect through networks outside IT's direct control. ==Industries and applications==

Mobile VPNs have found uses in a variety of industries, where they give mobile workers access to software applications. ==In telecommunications==

In telecommunication, a mobile VPN is a solution that provides data user mobility and ensures secure network access with predictable performance. Data user mobility is defined as uninterrupted connectivity or the ability to stay connected and communicate to a possibly remote data network while changing the network access medium or points of attachment. The Huawei product was focused on delivering a seamless corporate phone system to users whether they were on desktop phones or mobile devices. Although the web page is no longer available, the company advertised that their MVPN had the following advantages over a standard phone system: • Direct connectivity – the corporate network becomes part of mobile operator's network through direct connection • Private numbering plan – the communication is tailored to company organization • Corporate Business Group – all offices and employees are part of one common group, that includes all mobile and desk phones • Short dialing – a short number to access each employee, no meter on his mobile or desk phone • Smart Divert – easy divert within company group • Groups and subgroups – Several sub-groups could be defined within the group with different changing as well as with separate numbering plan • Calls control – certain destinations could be allowed or barred both on mobile and desk phones. ==Vendors==

• Bittium • Columbitech • Connectify • Ericsson • NeoAccel • NetMotion Wireless • Radio IP Software • Smith Micro Software • Tmharay ==References==