This parameter specifies the name of the user Realm that AuthBy DIAMETER is willing to handle. It is sets the value of the Origin-Realm attribute in the Diameter messages sent to the peer. OriginRealm is not optional an must be specified in the AuthBy DIAMETER clause. OriginRealm defaults to 'testoriginrealm'. Special formatting characters are supported. Formatting is done when the configuration is loaded and AuthBy DIAMETER clause is activated.