[Help Want ! ]netmeeting to iax2

I just built a webpage to use netmeeting to call a internal IAX2 phone.
and everytime I make the call , the CLI show :
dialparties.agi: Extension 202 is available…skipping checks
– dialparties.agi: DbDel CALLTRACE/202 - Caller ID is not defined
– AGI Script dialparties.agi completed, returning 0
– Executing Dial(“OOH323/903 903-0203”, “IAX2/202|15|tr”) in new stack
– Hungup ‘IAX2/202-1’
== Everyone is busy/congested at this time (1:0/0/1)
– Executing GotoIf(“OOH323/903 903-0203”, “0?s-CHANUNAVAIL|1”) in new stack
– Executing GotoIf(“OOH323/903 903-0203”, “1?s-CHANUNAVAIL|1”) in new stack
– Goto (macro-exten-vm,s-CHANUNAVAIL,1)
– Executing Congestion(“OOH323/903 903-0203”, “”) in new stack

-----my IAX2 CID = 202
the CLI doesnt work anymore and call was not placed… :cry:
the dialplan is:
exten => 202,1,marco(exten-vn,novm,202)
Pls help me to make it passoble…Thank a lots