asterisk users - Oct 2004 - H323 dial problem

Driver chan_h323.so

----

If extension is
exten => 0119823,1,dial(h323/0119823@10.10.10.1)

then dial is OK:
Executing Dial("SCCP/goran-00000002",
"h323/0119823@10.10.10.1") in new
stack

----

But if extension are something like:
exten => _011xxxx,1,dial(h323/10.10.10.1/${exten:3})
exten => _011xxxx,1,dial(h323/${exten:3}@10.10.10.1)
exten => _011xxxx,1,dial(h323/10.10.10.1:011XXXX)
exten => _011xxxx,1,dial(h323/10.10.10.1/011XXXX)
exten => _011xxxx,1,dial(h323/011XXXX@10.10.10.1)

Dial cannot be done:
    -- Executing Dial("SCCP/goran-0000000c",
"h323/10.10.10.1/") in new
stack
    -- Called 10.10.10.61
  == No one is available to answer at this time
    -- Executing Dial("SCCP/goran-0000000c",
"h323/@10.10.10.1") in new
stack
    -- Called @10.10.10.61
  == No one is available to answer at this time
    -- Executing Dial("SCCP/goran-0000000c",
"h323/10.10.10.1:011XXXX")
in new stack
    -- Called 10.10.10.61:011XXXX
  == No one is available to answer at this time
    -- Executing Dial("SCCP/goran-0000000c",
"h323/10.10.10.1/011XXXX")
in new stack
    -- Called 10.10.10.61
  == No one is available to answer at this time
    -- Executing Dial("SCCP/goran-0000000c",
"h323/011XXXX@10.10.10.1")
in new stack

Where is problem?

10.10.10.61 = 10.10.10.1
it's not a problem, I just replaced real address of H323 gateway in
listing (212 and something.....) with faked, and make mistake during
replacing :-)