Overview Reviews Product Description "Users: 100 (up to 200) "Users: 300 (up to 500) Max Concurrent Calls: 60 (up to 120) Max Analog Ports: 16 Max BRI Ports: 16 Max Cellular Ports: 6 Max E1/T1/J1 Ports: 2 Expansion Boards: 2*EX30/EX08+2*D30 External Storage: USB, HDD" Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Yeastar Yeastar (P570) IP PBX Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments