On Thursday 15 January 2009, Alex R.S.M wrote:
$(hdr(P-Asserted-Identity)[1]) returns the second uri header. However, $(hdr(P-Asserted-Identity)[1]){uri.host} didn't return the host portion of the second uri header.
The transformation should be within the parentheses. You could try $(hdr(P-Asserted-Identity)[1]{uri.host})
Alex.