Location Dependent Carriage Services (LDCS)

A Location Dependent Carriage Service (LDCS) is a carriage service in which calls to businesses which subscribe to these services are automatically routed to the appropriate store or branch location of the business, depending on the location of the caller. In other words, a customer calls a 13 or 1300 number (for example) of a particular business and is automatically connected to the store or office belonging to that business that is closest to the customers home. Services provided using LDCS include pizza delivery services and taxi services.

In order for automatic routing to occur, a routing table is required which situates a phone number within particular geographic boundaries (e.g. postcodes, Census Collection Districts, standard zone units, exchange areas etc.). This routing table could be created using the Integrated Public Number Database (IPND), which is a comprehensive source of customer phone number and address information.