A UTF-8 string limited to the character set defined for
E.164, '0123456789*#,<quote>'.
Note that <quote> represents the double quote which
cannot be contained in a SMI description clause.
DnisMapname
string
An identification for a DNIS map name or a DNIS name. A
DNIS map name correspods to a group of individual DNIS
names. The DNIS map names are unique in the system, and
within each map name, individual DNIS names are unique.