Electronic Hook-Switch Adapter (EHS)-Modul for Telephone of Siemens-, Funkwerk, Aastra, Agfeo, Auerswald, elmeg, Mitel, Swyx, Tiptel 275 (Analog), Tiptel 3130, 3120, 3110, Thomson TB30, UNIFY; can use with Online-Indokator (OLI)
Compatible with Mitel (some models were also known as Aastra) desk phone models: 5370, 5370 IP, 5380, 5380 IP, 6735i, 6737i, 6739i, 6753i, 6755i, 6757i, 6771, 6773, 6773 IP, 6775, 6775 IP, 6865i, 6867i, 6769i, 7434 IP and 7444 IP
Compatible with Unify (was Siemens):Open Stage 30, Open Stage 40, OpenStage 60, OpenStage 80, Optipoint 410, Optipoint 420, Optipoint 500, Optipoint 600, OpenScape IP 35G and OpenScape IP 55G