QX200 IP PBX, 4x FXO & 2x FXS, 24x SIP Ext. expandable to 200, line in/out ports, LAN/WAN
The QX200 is equipped with four FXO ports to connect to the PSTN. Also included is SIP trunking, so the QX200 can connect directly to an ITSP at no additional cost. The QX200 starts with support for 24 IP phones.