[asterisk-dev] chan_ooh323 issue

[Juan Carlos Castro y Castro]

Yowza! I'm gonna find a bug. There, filed -- # 7794.

We're getting our rear ends severely burned because of that problem. 
I'll help any way I can.

Vlasis Hatzistavrou Mailing Lists Account wrote:

>Hello,
>
>I believe that this is related to a known bug of chan_ooh323 where Asterisk
>does not respond/handle properly the CONNECT message it receives from the
>far end. 
>
>I didn't have time to look into this in depth, so I don't know if changing
>the settings of ooh323.conf will be of any help...
>
>Best regards,
>
>Vlasis Hatzistavrou.
>
>-----Original Message-----
>From: asterisk-dev-bounces at lists.digium.com
>[mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of Juan Carlos
>Castro y Castro
>Sent: Τετάρτη, 23 Αυγούστου 2006 11:03 μμ
>To: asterisk-dev at lists.digium.com
>Subject: [asterisk-dev] chan_ooh323 issue
>
>
>Greetings. Although this message may not initially look like a -dev 
>worthy post, keep reading because I believe it is.
>
>I have the following problem: I have an Asterisk+GnuGK installation, in 
>which the brand of H.323 ATAs we use (obscure OEM; I believe the maker 
>is Aristel) are unable to receive calls. The phone rings, when I pick it 
>up it's all mute and - that's the weird part - the originator keeps on 
>hearing ring tones as if nobody had picked up. When the receiving (mute) 
>end hangs up, the call is terminated. Calls in the other direction don't 
>have this problem.
>
>It's not an obvious ATA bug, neither a GnuGK bug -- two ATAs can call 
>each other just fine. More: Asterisk can call an H.323 softphone 
>(SJPhone) fine too. The traffic from the latter looks mighty different 
>from that from a call to an ATA. Here's links to Ethereal analyses of 
>three cases:
>
>Asterisk to SJPhone (OK):
>http://img78.imageshack.us/img78/9452/asterisktosoftphoneka1.png
>Asterisk to ATA (Rings but doesn't complete):
>http://img78.imageshack.us/img78/8003/asterisktoatasq5.png
>ATA to ATA (OK):
>http://img168.imageshack.us/img168/1830/atatoouratajd6.png
>
>The big difference between Asterisk-to-ATA and ATA-to-ATA is, Asterisk 
>(or, rather, chan_ooh323) never sends terminalCapabilitySet or 
>masterSlaveDetermination packets. And, of course, there's no RTP coming 
>from Asterisk.
>
>All captures were made at the gatekeeper. It has two IP addresses (has 
>to because of Linux-HA). Switching to it having only one IP didn't help. 
>Yes, I have the .cap files that originated those.
>
>I fear there will have to be some hacking in chan_ooh323 (hence me 
>posting here) in order for it to speak properly with the ATAs like other 
>ATAs do. If someone would like to test this, I can register my H.323 ATA 
>with the gatekeeper you're using, and keep on making and receiving calls 
>at your leisure. Plus chatting via MSN or the messenger of your choice, 
>or IRC.
>
>If this wasn't -devvy enough, I'll post to -users instead. Should it 
>also go to bugs.digium.com?
>
>Regards,
>Juan
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