Avaya Communication Manager Administrator's Manual page 1108

Screen Reference
Intra-region IP-IP Direct Audio
Allows direct audio connections between IP endpoints within a network region.
Valid entries
y/n
native(NAT)
translated(NAT)
Inter-region IP-IP Direct Audio
Allows direct audio connections between IP endpoints in different regions
.
Valid entries
y/n
translated(NAT)
native(NAT)
1108 Administrator Guide for Avaya Communication Manager
Usage
Enter y to save on bandwidth resources and improve
sound quality of voice over IP transmissions. An n
entry might be used if, for example, the IP phones
within the region are behind two ro more firewalls.
Enter native(NAT) if the IP address from which
audio is to be received for direct IP-to-IP connections
within the region is that of the telephone/softphone
itself (without being translated by NAT). IP phones
must be configured behind a NAT device before this
entry is enabled.
Enter translated(NAT) if the IP address from which
audio is to be received for direct IP-to-IP connections
within the region is to be the one with which a NAT
device replaces the native address. IP phones must
be configured behind a NAT device before this entry
is enabled.
Usage
Enter y to save on bandwidth resources and improve
sound quality of voice over IP transmissions. An n
entry might be used if, for example, the IP phones
within the region are behind two ro more firewalls.
Enter translated(NAT) if the IP address from which
audio is to be received for direct IP-to-IP connections
between regions is to be the one with which a NAT
device replaces the native address. IP phones must
be configured behind a NAT device before this entry
is enabled.
Enter native(NAT) if the IP address from which
audio is to be received for direct IP-to-IP connections
between regions is that of the telephone itself
(without being translated by NAT). IP phones must
be configured behind a NAT device before this entry
is enabled.