2.12.5. TYPE ASC - Setting the Codec List for DMC Connections,
RTP Packet Size, Voice Activity Detection and T.38 Fax 
See also Chapter
14, “Codec Settings”.
Codec list
With NCUI2, direct media connections from IP phones, trunking gateways
or HG 3500/75 gateways associated with networked OpenScape 4000 systems
can be terminated on the board. Unlike for IPDA, the codec type for DMC
connections is not selected using classmarks but rather on the basis
of a codec list which provides the relevant partners with information
about the codec types supported and preferred.
HG 3575 supports two codec types: G.711 and G.729
The sequence in which the codec types are named defines the preference.
The type named first is preferred.
In the example, NCUI2 supports G.711 and G.729 but G.729 is preferred.
The audio sample size for G.711 and G.729A is set to 60 ms.
T.38 Fax
 |
Configuration Management > System Data > IPDA > IPDA Access Point
Click Search and select the access point.
Select G729, G711 on the General tab under DMC Codec List in
the Direct Media Connection section and Save.
|
 |
CHANGE-STMIB:MTYPE=NCUI2,LTU=99,TYPE=ASC,PRIO=PRIO1,CODEC=G729,RTP=60;CHANGE-STMIB:MTYPE=NCUI2,LTU=99,TYPE=ASC,PRIO=PRIO2,CODEC=G711,RTP=60; |
This change is started directly on the access point and is effective
immediately without an interruption in operation.