When picking fiber, you are often faced with two options - UPC or APC connector. Is there any difference between them? Can you use either in your project? &nb

In 1984, the Bell System in the USA was broken up in order to introduce competition for data services and long-distance phone calls. In this model, the long-distance networks and the access network we

Traditional PBX and Centrex     Traditional Centrex and PBX are systems developed and installed before

After publishing of our article about Demarcation Points, which briefly discussed also concept about PBX, and this scheme below, one of our

Telephone networks are traditionally described as consisting of three parts: access, switching and transmission, also known as the access network, switching netwo