- 2 × RJ-25 (6P6C) for connecting a console to an IP-phone and to the next console VP-EXT22
- 22 keys with LED indication
- Color LCD
VP-EXT22 — console that extends functionality of the VP-20(P) and VP-30P(-WB) IP-phones. The device includes 22 additional keys with LED indication, color LCD, and 3 virtual pages, which increase the number of programmable keys up to 66.