Program-controlled exchange, also known as program-controlled digital exchange or digital program-controlled exchange, usually refers to the switching equipment used in the telephone exchange network, which uses computer programs to control the connection of telephones.
The basic functions of digital program-controlled switches are: subscriber line access, relay connection, billing, equipment management, etc.
Introduction In today's rapidly evolving industrial landscape, effective communication plays a crucial role in ensuring smooth operations and the safety...
Sanayi Devrimi sırasında, pek çok büyük mucit ve yenilikçi ortaya çıktı; bunların arasında, bilimi icat etmekle tanınan Alexander Graham Bell de var...