In one embodiment, an enterprise network is provided that includes a mobility module 150 associated with a first or second switch/server 100 or 104, respectively. On the second switch/server, the mobility agent manages a pool of mobility user station records 168a-j and creates visitor application records 172a-i associated with a external subscriber communication devices 136a-n. Each visitor application record is associated with a subscriber whose communication device is controlled by the first switch/server 100. In response to a selected stimulus, outgoing call processing for selected communication devices on the first switch/server is moved to the second switch/server 104 by associating, for each such device, a selected record 168 with a corresponding record 172.