The value of tmnxMobPdnApnChrgProfileVisiting specifies the visiting
charging trigger rules applied for generating Charging Data Records
(CDR) for visiting subscribers.
If a corresponding charging profile does not exist in
TIMETRA-MOBILE-PROFILE-MIB::tmnxMobProfPgwChargingTable,
an 'inconsistentValue' error will be returned.
A value of '-1' specifies that charging profile information is
inherited from the value of tmnxMobPdnChargingProfVisiting which
specifies the charging trigger rules applied for visiting subscribers
at the gateway level.