A communications network user may define multiple states. The state of the user
is communicated to a call processing server. A set of instructions establishes
various call processing options for incoming or outgoing calls received when the
user is in one of the defined states. Upon receipt of a request to establish communication
to or from the user, the call processing server processes the request as specified
by the instructions in the instruction set that are mapped to the user's current
state. The instructions may be in the form of a Call Processing Language (CPL)
script, and may reside on a Session Initiation Protocol (SIP) compliant proxy server.
The user state may be uploaded to the server in various manners.
