Apparatus, and an associated method, for redirecting telephonic calls. Calls are directed to a user based upon the user's presence on a packet network. An indexer indexes together a forwarded call location together with dialing digits associated with a called location. When a calling party subsequently places a call to the called location, selected redirection of the call is effectuated pursuant to redirection procedures. A telephonic switch, through which the call placed by the calling party is routed, accesses the index formed by the indexer, located, for example, at a service control point. Responsive to the values contained in the index, the call is routed, to be delivered to the called party. In a work-from-home scenario, a TDM call placed to a worker's work location is redirected to a secondary location with the only effort required by the worker being his log on to the worker's corporate network.