This is the i'th National facility required for this direct call. Within
the provisioning system, the user specifies the facility code along
with the facility parameters. The facility is represented internally as
a hexadecimal string following the X.25 CCITT representation for
facility data.
Two explicit attributes discardPriority and transferPriority are
created to replace H.01 and H.30 in the group
VcsDirectCallOptionsProv of this file. The migrate escape here
(DcComponent::migrateFaxEscape) propagates the old
provisioning data under H.01.
The rule of the above propagation are: 0 in H.01 is equivalent to
discardPriority 0; 1 in H.01 is equivalent to discardPriority 1. And
0 in H.30 is equivalent to transferPriority normal; 1 in H.30 is
equivalent to transferPriority high.
Please refer to discardPriority and transferPriority for more
information on how to use them.