That’s the “A” from the acronym — it means automatic. In distinction, traditional PBX systems will need human switchboard operators to manually hook up cell phone customers. Quantities shown in italicized text are for items shown in currency other than U.S. dollars and are approximate conversions to U.S. pounds based https://escortservices70258.blogpayz.com/35459916/facts-about-pabx-systems-revealed