The authoritative reference for Avaya IP Office IP500v2 Combo
Phone Port and trunk Module which provides a 10 channel VCM, 6
Digital Station Phone Ports, 2 POT Phone Ports and either a 4
port ATM trunk module or a 4 port BRI module.
The authoritative reference for the Avaya IP Office License
Dongle - A single representation for three dongle types,
Parallel, Serial and USB. The Parallel and USB ones not truly
connected directly to the IP Office but the managing PC.