gvcIfDnaIncIntlNormalCharge
1.3.6.1.4.1.562.2.4.1.107.5.13.1.4
This attribute, if set to a value of allowed indicates that incoming
international normal charged calls (from the network to the DTE)
be made to this Dna. If set to a value of disallowed, then such calls
cannot be made to this Dna - such calls will be cleared by the local
DCE.
This attribute also currently controls access to/from the E.164
numbering plan, and if set to a value of allowed, then cross-
numbering plan calls (also normal charged) allowed.
This attribute is ignored if the corresponding attribute, incCalls is
set to a value of disallowed.