MVPN

A mobile Virtual Private Network (VPN) is telecommunication 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. [http://media.wiley.com/product_data/excerpt/10/04712190/0471219010.pdf]

Using mVPNs the company has the following advantages [http://www.huawei.com/publications/view.do?id=131&cid=79&pid=61] :
* 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.

MVPN also stands for Multicast-VPN, which is an IETF draft which describes the implementation of customer multicast traffic over a service provider enabled MPLS backbone.