A telecommunication station set such as an IP phone is configured based on
proximity of a user. Proximity of the user relative to the station set
can be determined using RF-ID, UWB, GPS, direct user input, contextual
information or other technology. For example, the user may carry a badge
equipped with an RF-ID tag. The RF-ID tag is operative in response to an
RF-ID reader associated with the phone, when in close proximity, to
signal user ID and password, which may be encrypted. The user ID and
password are sent to a SIP server, which authenticates the user and
retrieves user-specific configuration details which are returned to the
IP phone. The IP phone configures itself with the user-specific
parameters. If the user moves away from the phone, as determined by the
RF-ID tag being out of range of the reader, the IP phone de-configures
itself.