Difference between Softswitch and IP PBX?
The major difference between a carrier-class CO switch and a PBX is exactly as implied by the name: a private branch exchange is designed for a single private branch – i.e. a much, much smaller installation than a CO switch like a 5Ess or DMS500. Functionally, a PBX has essentially the same capabilities as a CO switch. Difference between Softswitch and IP PBX?.


