Red5phone and sip issue

hi,

i am using openfire 3.5.2

and installed red5plugin(which is configured correctly )

as i got the page http://localhost:8181/red5/red5.html(8181 is http bind port).

Now i want to test red5phone applicaiton in that

i tried that sample with free available sip servers, but it give connection succes at start but does nothing but gives timeout message

Can anyone tell where i am wrong, what sip settings i have to do

also when from sparkweb i press make a call button it gives me error “YOU DO NOT HAVE SIP PHONE PROFILE”.

Can anyone help me on this issue, really stucked up here…