[asterisk-users] define extension to send calls to gatekeeper

[s m]

hello every one,

i have an asterisk system and want to act as gateway and send calls to
cisco gatekeeper.

this is my h323.conf file:
[general]
port=1720
binaddr=192.168.0.YY
context=from-trunk
faststart=yes
h245tunneling=yes
gatekeeper=192.168.0.XX //cisco address
progress_setup=8
progress_alert=8
dtmfmode=rfc2833
jbenable=yes
jbforce=no
jbmaxsize=200
jbresyncthreshold=1000
jbimpl=fixed
jblog=no

and this is extension that i defined for it in extensions.conf:
exten=>_2.,1,Dial(H323/2${EXTEN:1})
 (if i define my extension like
(exten=>_2.,1,Dial(H323/to-cisco/2${EXTEN:1}), asterisk returns core dump
error.

but, i can't send my calls to cisco gatekeeper. do you have any suggestion
what is wrong with my configuration?
thanks in advance
SAM
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