Disabling Auto-Discovery; When You Have Two Altigen Servers In The Same Network - Altigen ACM 6.5 Administration Manual

Disabling Auto-Discovery

To disable auto-discovery on individual AltiGen IP phones, each phone must have its
Menu > System > Auto Discovery menu item set to NO.
To disable auto-discovery on all phones, do not set DHCP option 120, or delete it if you
have already set it.
When auto-discovery is disabled, the MAXCS SERVER address must be set manually.

When You Have Two AltiGen Servers in the Same Network

If there are two AltiGen servers in the same network, some IP phones will get the wrong
server IP address and cause log on failure. See the warning on page 241.
Configuring Auto-Discovery of Server IP Address
MAXCS ACM 6.5 Administration Manual 245