%HEADERS[“Name”][n]

Used to retrieve an entire header. The second dimension ‘n’ denotes the nth instance of the header in the message. Value of n can be 1...∞

%HEADERS[“Name”][n].PARAMS[“Name”]

Used to retrieve parameters within a header.

%HEADERS[“Name”][n].DISPLAY_NAME

Refers to the display name within a header.

%HEADERS[“Name”][n].URI

Refers to the URI within a header.

%HEADERS[“Name”][n].URI.USER,

%HEADERS[“Name”][n].URI.HOST,

%HEADERS[“Name”][n].URI.PORT,

%HEADERS[“Name”][n].URI.SCHEME,

%HEADERS[“Name”][n].URI.PARAMS[“Name”]

Refers to various elements within a URI.