1x onboard E1/T1/PRI port - P560 supports one expansion board and P570 allows two
EX30 has 1 onboard E1/T1/PRI port to expand 1 E1/T1/PRI trunk for S100 VoIP PBX, S300 VoIP PBX, P560 VoIP PBX, and P570 VoIP PBX. It allows users to flexibly customize IP PBX with unique modular design. The P560 can support a maximum of 1 pcs EX30, P570 can support a maximum of 2 pcs EX30.
