A mobile virtual private network (mobile VPN or mVPN) provides mobile devices with access to network resources and software applications on their home network, when they connect via other wireless or wired networks.
Mobile VPNs are used in environments where workers need to keep application sessions open at all times, throughout the working day, as they connect via various wireless networks, encounter gaps in coverage, or suspend-and-resume their devices to preserve battery life. A conventional VPN cannot survive such events because the network tunnel is disrupted, causing applications to disconnect, time out, fail, or even the computing device itself to crash. Mobile VPNs are commonly used in public safety, home care, hospital settings, field service management, utilities and other industries. Increasingly, they are being adopted by mobile professionals and white-collar workers.
Comparison with other VPN types
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 (telecommuting workers or business travelers).
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.
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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.
Devices
Some mobile environments call for devices built to handle physical shock, weather extremes or other conditions encountered outdoors or in the field. Some manufacturers create ruggedized computers, such as the Panasonic Toughbook or the Itronix GoBook, in laptop or Tablet PC configurations. Various handhelds and smartphones may also be used. Operating systems are typically Microsoft Windows-based, including special mobile-capable versions such as Windows CE and Windows Mobile. Mobile VPN is available for all Symbian OS based smartphones by Nokia.
In telecommunications
In telecommunication, a mobile VPN is a solution that integrates all offices and employees in a common network that includes all mobile and desk phones. Simultaneously mVPN makes internal communication more efficient, by providing additional services and guarantees high quality for best value. Through a connection between a leased line (E1/T1) and an enterprise PABX (Private Automatic Branch Exchange) system, it connects remote and mobile users with the company.
Using mVPNs the company has the following advantages:
- Direct connectivity - the corporate network becomes part of mobile operator's network through direct connection
- Private numbering plan - the communication is tailored to company organisation
- Corporate Business Group - all offices and employees are part of one common group, that includes all mobile and desk phones
- Short dialling - 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
- Smith Micro Software
- Birdstep Technology
- Ericsson
- Radio IP Software
- Columbitech
- NeoAccel
- NetMotion Wireless
- Nokia
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