I'll just talk about mobile Private Network, also known as radio communication in closed user group, is a mobile phone service that only lends itself to a group of people in a given geographical area, operation is identical to that of public networks , with minor nuances, there are two forms of service.
The first user group and they alone, uses a certain frequency. The second system is responsible for allocating frequencies among different groups free, so there is no correspondence grupofrecuencia.
Among the former we can highlight EDACS systems, controlled by a computer manufactured by Ericsson, widely used by firefighters, rescue teams, police, ambulances. It is a very secure system capable of establishing communication in very adverse conditions. The latter are called Trunking systems and their operation is very similar to mobile phone automatically (TMA), one of the first analog cellular systems published. The biggest difference is that when there is a clear channel for communication, TMA dismisses the call and the user must retry later, while Trunking networks control these calls, setting up a queue, two of the most popular systems are Trunking Taunet, which is analog, and Tetra, which is digital.
Putting Ideas into Action
Source: 8e6 Technologies
PART X
When looking for a device for blocking websites and monitoring must be sure to provide the same protection to mobile computers as those within the corporate network, this includes filtering and blocking of pages based on URLs, addresses IP, http (hypertext transfer protocol), FTP (file transfer protocol), newsgroups, search engines, mail relay sites, as well as IM and P2P protocols.
It must contain a centralized remote management client that lets you manage from anywhere, this device should have the possibility to be grown under the same growth of the company, the customer must have a record of URL pages visited by employees besides being completely transparent to end users and can be configured only by authorized personnel.
In addition to this device is highly desirable to have one more than is the recipient of all these historical archives and that were previously linked with a client to process and present information, indexed and presented in a format defined by the administrator who can contain the following information:
- Category of the visited page.
- User visiting the page
- Length of stay
- Cross-referenced data.
Presenting the information as it is most needed (daily, weekly, monthly), by individual or groups.
This information will form valuable and useful to the systems manager for security and business productivity.
The remote client will automatically detect if the user is logged in the company or outside it without the administrator involved in this process.
