Programming Hotkey Expansion Module,
32 program keys each with a three-colour LED,
BLF, Speed dial, Conference, Call waiting, DND.
Expansion module is powered by the host phone.
Daisy-chain 6 modules for 192 programmable keys
Compatible with the following Escene Handsets ONLY:
- WS620
- ES330
- ES620
- DS412
- DS622
