Avaya Communication Manager Administrator's Manual page 1120

Screen Reference
codec-set
Indicates which codec set is to be used between the two regions.
.
Valid entries
1 to 7, pstn
direct-WAN
The entry in this field indicates whether the two regions (source and destination) are directly
connected by a WAN link.
Valid entries
y/n
dst rgn
The entry in this field identifies the destination region for this inter-network connection..
Valid entries
1 to 250
1120 Administrator Guide for Avaya Communication Manager
Usage
If the two regions are not connected at all, this field
should be blank. When the codec set is blank, the
direct-WAN, WAN-BW-limits, and Intervening-regions
entry fields are not displayed. This field cannot be blank
if this route through two regions is being used by some
non-adjacent pair of regions.
Usage
The default value is y(es) if the codec-set field is not
blank. If so, the WAN-BW-limits field displays, but the
Intervening-regions fields do not. If the direct-WAN
field is set to n(o), then the WAN-BW-limits field does
not display, but the Intervening-regions fields are
displayed.
Usage
Display-only. Shows the destination region for this
inter-network connection.