This value records the failure location field from the Q.931/Q.93b cause information element, per the description, indicating where in the call path (user, local private/public network, transit network, remote private/public network, international network, or beyond an interworking point) the failure was attributed. This tells you whether to look locally or escalate outward: a location of user(1) points at the far-end terminal/application, while privNetServLocal(2) points at this switch's own network, and pubNetServRemote(5) or intlNet(7) point well outside the admin's own infrastructure. This field is what turns a bare cause code into an actionable 'whose problem is this' answer.