This object is used to enable accounting when the
APN is in 'transparent' mode. When the object is set to
'true', cgprsAccPtAaaAccountServerGroup is used for
accounting. If cgprsAccPtAaaAccountServerGroup is not
specified, cgprsAccPtAaaAuthServerGroup will be used.
When the APN is in 'non-transparent' mode, the
accounting will always be enabled i.e., this object
will be 'true' by default.