2.17.7.2. Settings for the HFA Subscribers 
The Codec information, which will be used for a call, must be available
for the Resource Manager for reserving the necessary bandwidth.
The setting in the AMO must be corresponding to the setting
at the terminal (Administration) for the HFA subscriber.
CHANGE-SBCSU:STNO=2420&2421,OPT=OPTI,IPCODEC=G729A;
Codec setting of the HFA subscribers for the master connection
in the IPDA section.
CHANGE-SDAT:STNO=2420&&2421,TYPE=DATA1,CLASSMRK=G711&G729AOPT&EC;