Скачать или смотреть PBX Fundamentals: Types, Functions, and Security

I discussed the fundamentals of PBX, which stands for private branch exchange. I explained that it's a telephone switching system inside an organization, connecting internal phones and extensions to the outside world via trunks. I highlighted that PBXs exist for cost savings, enabling internal dialing, central control, and advanced features. I also differentiated between traditional, IP, and cloud PBXs, discussing their pros and cons. I then outlined the core PBX functions, including call routing, voicemail, call transfer, conference, trunking, and integration. Lastly, I touched on PBX security, emphasizing that it's a primary attack target and suggesting measures to secure it.