oh323 performance issue

Hi,

I test oh323 using cisco->asterisk->cisco test bed. It always needs half minute for asterisk to make a call. I know somebody are using oh323. Is this a normal condition or I made some mistake?

modules.conf
[modules]
autoload=no
; Resources
load => res_features.so
load => res_indications.so
; PBX
load => pbx_config.so
; Functions
load => func_callerid.so
; Channels
load => chan_h323.so
; Codecs
load => codec_alaw.so
load => codec_ulaw.so
load => codec_gsm.so
; Applications
load => app_dial.so
load => app_voicemail.so

h323.conf
[general]
port = 1720
disallow=all
allow=ulaw
context=test

extensions.conf
[test]
exten => _XXXX.,1,NoOp(test)
exten => _XXXX.,n,Wait,1
exten => _XXXX.,n,Dial(H323/${EXTEN}@${DESTIP},60,o)
exten => _XXXX.,n,Wait,3
exten => _XXXX.,n,Hangup

Thanks.

I forgot to mention my asterisk box is p3 500mhz 512M memory.