We offer here our used Auerswald COMpact 4000 in very good condition. The plant worked perfectly until dismantling in December 2025 and was reset to factory settings - this can now be reached via DHCP. Scratches or other dents are not present, since this has been located only in the network cabinet since installation.   The plant was built in 2017. Tested cold appliance cable according to DGUV3 (still up to 04/27) is connected, Blue Angel certificate is available, CE seal is also available.   Technical data: Participant capacity: up to 16 participants Official channels: max. 10 VoIP channels: up to 12 simultaneously Ports: VoIP, ISDN (S0/UP0), Analog (a/b) Module slots: 2 expansion slots Voicemail/Fax: 4 voicemail channels, 1 fax channel Network: Ethernet LAN Assembly: wall mounting device Compatibility: COMfortel IP/ISDN phones, SIP terminals