internet phone dialing rules from a motel line

Archived from groups: microsoft.public.windowsxp.newusers (More info?)

I need help, recently I've been on the road with my desk top(yes my desktop)
vaiio and although in the recent past ,like the last darned hotel, I've been
able to connect to my isp using the dial-up rules in the internet set up
process. However for some reason I am unable to do so from this motel even
though I can use the same calling card for regular calls from this line
whenever I try using the callcard as part of the dialing rules I get a
notification that my username and/or password are incorrect, when I know for
a fact they are not. Is there something that the motel is doing or am I just
missing something obvious this time that I used to do and am not, now?