[Asterisk-Users] oh-323 / Cisco AS5300 problem

[Matias G.]

Hi i'm trying to connect to the PSTN  in the following way
sip ATA -> * -> gnugk -> Cisco AS5300 -> PSTN

I'm using asterisk  CVS-HEAD-06/01/05-14:33:15 running over RH EL3 
Asterisk-Oh323 0.7.2 pre1
Open H323 v1.13.5
pwlib v1.6.6

and I'm having a lot of trouble, gnugk and * both have public ips and are not behind any type of firewall, the sip ATA is behind a firewall and has a private ip but there's a stun server working and the connection works fine.

If i try to dial out from the sip ATA through the GK (gnugk) configuring g729 in the sip account and the oh323.conf I get an error about trying to use ulaw:
   -- Executing Dial("SIP/D0103-3a43", "OH323/80152392522|50")
    -- H.323 call to 80152392522 with codec(s) g729
    -- Called 80152392522
    -- OH323/80152392522-ef38 is ringing
Jun  3 10:09:05 NOTICE[27744]: channel.c:1873 set_format: Unable to find 
a path from ulaw to g729
Jun  3 10:09:05 NOTICE[27744]: channel.c:1873 set_format: Unable to find 
a path from ulaw to g729
OH323/80152392522-ef38: Format changed to ulaw (native g729).
Jun  3 10:09:05 NOTICE[27744]: channel.c:1873 set_format: Unable to find 
a path from g729 to ulaw
Jun  3 10:09:05 WARNING[27744]: app_dial.c:583 wait_for_answer: Unable 
to forward voice
    -- Hungup 'OH323/80152392522-ef38'
  == No one is available to answer at this time (1:0/0/0)
    -- H.323 call 'ip$localhost/32125' cleared, reason 1 (Cleared by 
local user)

but if i try g711 ulaw on both the ata and the oh323 i get the following error
   -- Executing Dial("SIP/D0103-d16b", "OH323/00541152392522|50")
    -- H.323 call to 00541152392522 with codec(s) ulaw
    -- Called 00541152392522
    -- H.323 call 'ip$localhost/26583' cleared, reason 24 (Call ended 
with Q.931 cause)
    -- OH323/00541152392522-d872 is busy
    -- Hungup 'OH323/00541152392522-d872'
  == Everyone is busy/congested at this time (1:1/0/0)

I found a message about this error from January but there is no follow up

any clues? 

thanks a lot in advance.
Matias
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