Hello everyone. I want to install a telephone exchange and I want to know how much is the maximum distance that I can use for the annexes (analogs) and what type of cable do you recommend, if you should use telephone cable (2 or 4 wires) or UTP cable (8 wires). The idea is to install 100 annexes in a 14-story hotel, which I want to know how many meters maximum I can have so that the voice transmission is optimal. (and what type of cable) I understand that with UTP you can use up to 100 meters, but this is when you transmit data and I want to know if the voice is the same or can be extended. Regards.

With cable of 0.5 more than a thousand meters. http://prntscr.com/jhwf8j Regards.