ASTRONET LIMITED COMPANY
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PBX System

Astronet co., Ltd. specializes in design consulting, construction and installation of the telephone exchange system PBX.

PBX is a private telephone network used within a company. The users of the PBX phone system share a number of external phone lines to make calls to the PBX connects ngoai.He internal phone in a business and also connects them to the electricity network public switched telephone (PSTN). One of the latest trends in the development of the PBX phone system is VoIP PBX, also known as IP PBX, which uses the Internet Protocol to transmit calls.


Today there are four options on PBX phone system different: 
PBX 
Hosted / Virtual PBX 
IP PBX 
IP PBX / Virtual.