AMCD
From Zenitel Wiki
AMCD is short for Alphacom Module Controller Daemon. It is the main application SW process running on the AMC-IP board. All intercom features like calls and groupcalls are implemented in AMCD.
It is a Linux userspace multithreaded program running in the background (daemon mode). The core of the SW on the AMC board was ported to become the AMCD linux program.