1. E-PBX with 8 FXO loaded. * The FXO port is used to connect to PSTN ... used in the structure: 1. E-PBX with 8 FXO loaded. * The FXO port is used to connect to PSTN ... : 8FXO, 1RJ45 (10/100M) Protocol: SIP (based on Asterisk) Storage Temperature: -10 to 65oCHumidity: 10% to 90% ... Spanish Portuguese IP PBX,PABX-8FXO,Based on Asterisk,Support voip sip IP PBX,PABX-8FXO,Based on Asterisk,Support voip sip ...