Secretary-General proposes an automatic caller to enter the number for connection with a specific department or employee. Necessary to define and outgoing calls. For optimal load ATS use certain ratio of external and internal lines, it is usually 1:3 or 1:4. To do this you need to determine which of the extensions will be have access to the city network, which outside lines will be used for this, who and how the lines will go on long distance and international network. Many PBXs have additional functions, use which requires additional units and modules feature a direct access to the system, or DISA. In addition to establishing a connection to a specific employee.

It provides an opportunity outside the office to take one of the Trunk a location nearby and always stay in touch, voice mail, which will most effectively handle incoming calls and avoid losses due to absenteeism in the workplace accommodations function. For example, population control and check-out, wake-up calls, information about the status of the rooms, etc. They are widely used in the hospitality industry; CTI – Computer Telephony Integration. Allows you to integrate with the PBX answer what type of PBX Select – analog or digital, for the basic functions for them are the same. Analog Digital PBX cheaper, similar in capacity, but on the other hand, are more modern digital PBXs and have more high quality communication. In addition, digital telephone service offers more features such as DECT or CTI. The choice of handsets to work with the PBX also not without significance.

Most manufacturers offer a PBX system phones that are compatible only with these exchanges, and providing convenient access to all service functions. Most models have a proprietary telephone speakerphone and LCD display, which displays information transferred to the PBX. Conventional analog phones do not provide such opportunities. Manufacturers of ATS, as a rule, rely on the fact that on the table the user has a PBX system should be phone, and analog phones will be used as fax machines, answering machines and modems. The downside is that the system more expensive than conventional phones and cabling may be different from wired analog phone. So in determining the location of jobs needed to foresee the number and location of system telephones. It is important to note that despite the opportunities did not have selected ATS, incorrect configuration and the main thing.