The value of tmnxDiamPlcyDccaApplicationType specifies
the application type associated with this policy.
It defines the set of supported values for the Auth-Application-Id AVP.
tmnxDiamPlcyDccaApplicationType | Auth-Application-Id
--------------------------------|-------------------------------------
vfDccaV2 | 4 (standard)
gx | 16777238 (vendor-specific 3GPP)