ATCOM EX20 Erweiterungsmodul für das ATCOM AT640 IP Telefon mit Anzeige Status (mehrfarbige LED) der Nebenstelle
Features
Supports BLF, Speed Dail, DND, Directory, Redail, Call Transfer, Call Forward, Call History Details
No need for extra power supply. Powered by AT-640 directly
20 Keys for each EX20
Each AT640 can work with 2 EX20 max
