Specifications

Bandwidth, Codecs and Compression
183
Assuming that the end devices are capable of supporting the available CODECs, then the
following table will highlight the operation from Release MCD 5.0 for calls within a common
zone as well as calls between zones. Note that prior to Release MCD 5.0, there were only two
CODEC selections and these were often referred to simply as non-compressed and
compressed. At Release MCD 5.0 additional CODEC selections now need to be considered.
Table 58: Codec Zone Interconnects
Zone
Interconnect
IntraZone
Compression
InterZone
Compression
Route
Compression
To Zone 1 To Zone 2
Zone 1
No*
Yes**
(Defined
Setting)
Off
G.722.1
G.711
G.729
G.722.1
G.711
On G.729
G.722.1
G.711
G.729
G.722.1
G.711
Auto*
G.722.1
G.711
G.729
G.722.1
G.711
Yes
Off G.729
G.722.1
G.711
G.729
G.722.1
G.711
On G.729
G.722.1
G.711
G.729
G.722.1
G.711
Auto* G.729
G.722.1
G.711
G.729
G.722.1
G.711