AddPac AP1005 is a VoIP gateway manufactured by the South Korean company AddPac. The AddPac AP1005 model is equipped with four FXO ports, with the help of which you can connect and register up to four regular city telephone lines on modern IP-PBXs. This feature may be required, for example, in companies that have changed their old telephone exchange to a new IP-PBX, but at the same time retained their existing telephone numbers and lines.