Multiple choice

Telecomm. equipment owned by business that enables internal calling between extensions

  1. PBX

  2. CO Switch

  3. MOS

  4. RTP

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A Private Branch Exchange (PBX) is a telephone system within an enterprise that switches calls between users on local lines while allowing all users to share a certain number of external phone lines.