illustrates such a system in which a calling party places a call on his phone 102 to a called party 39 s cell phone 104 through the called party 39 s enterprise network 106 comprising a pbx 108 and a telephony server 110 while being depicted as separate entities it is contemplated by the invention that the functions of the pbx 108 and the telephony server 110 can be combined in one physical unit although not shown in fig1 the calling party may have originated the phone call using a land line phone consequently it is contemplated by the invention that the telephony network 112 over which the call is completed comprises both pstn public switched telephone network and cellular communications of significance to the invention is that the telephony server 110 is equipped with the feature whereby a call original directed to a subscriber 39 s number is rerouted to an alternative location number these systems are well known in the art and permit the user to store alternative numbers where he is most often contacted i e their desk home mobile phone etc these numbers can be readily changed and or prioritized by various interfaces with the user once a call is rerouted to the called party cell phone 104 the server 110 has access to both inbound 114 and outbound 116 legs of the call in the prior art call reconnect systems an attempt is made to identify the occurrence of a cellular cutoff this identification occurs by simply measuring the time duration from when the called party has.