Nils Ohlmeier writes:
I bag to disagree but according to the BNF of RFC3261
(page 222) the
username of the URI below is '5551212;npdi=yes' and the host part ist
'x.x.x.x' (and the URI parameters are 'dtg=SIP' and
'user=phone').
syntax of userinfo is
userinfo = ( user / telephone-subscriber ) [ ":" password ] "@"
in the case of question, userinfo consists of telephone-subscriber and
its syntax is defined in rfc2806.
-- juha