Integrated Special Services Network
In a phone system (notably AT&T), controls special user features and customer control options. Not to be confused with ISSN, the serial number used by the Library of Congress used to register magazines.
In a phone system (notably AT&T), controls special user features and customer control options. Not to be confused with ISSN, the serial number used by the Library of Congress used to register magazines.
by LarstaiT November 7, 2003