Cross-call agent extension mobility with call admission control and emergency calling

摘要

A system for cross-registration of a phone device is provided. The system includes a local call processing system that stores phone device information for a local phone that is operable to be used by a user; and a remote call processing system that stores a user phone profile for the user, the remote call processing system being operable to generate a visitor registration for the local phone device. The phone device is operable to use the visitor registration to register with the remote call processing system.