Altigen ACM 6.7 Administrator's Manual page 337

a remote AltiGen system over WAN
•
• SIP Trunk service provider over WAN
• multiple gateways on the LAN
The codec profile assigned in the IP Device Range table (shown below) supersedes the
codec profile defined in the IP dialing table if the IP address is duplicated in both tables.
The SIP transport assigned to an extension in the IP Phone Configuration screen takes
precedence over a codec profile with a different SIP transport assigned in Enterprise
Manager. If the IP extension supports TLS and the codec profile does not, then the IP
extension policy holds. That way you can configure a range of IP addresses in the IP
dialing table or IP codec, and have only a few IP addresses/extensions support TLS.
If the IP extension has not configured TLS as its transport, and the codec profile supports
it, then the codec profile policy holds.
To set IP address ranges and assign codec profiles to them, in Enterprise Manager click
the IP Codec tab.
By default, all private addresses are set to G.711 codec only. You can add individual IP
addresses and address ranges and assign a codec to each.
Assigning Codec Profiles to IP Addresses
MAXCS ACM 6.7 Administration Manual 323