asterisk users - Apr 2006 - H.323 question, take so long time to call

hi all,

     i use asterisk-1.2.0-beta and asterisk-oh323-0.7.3 with
openh323_v1_17_1 .  when i dial out with H323, it take so long time to
start a 323 call ,  usually 80 seconds .

     i havn't used gk.

    i trace the code , and found out it block at

    h323_make_call(........

    this function take so long time to return.  if i should configure
somewhere to let call go more smoothly. i just wanna call like

 Dial(H323/4534@45.543.544.54)

regards,

                                                                      
            welemon