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Summary:ASTERISK-25748: No audio h323 Asterisk with Ericsson MD110
Reporter:Alessio Tidei (alex80)Labels:
Date Opened:2016-02-05 12:35:27.000-0600Date Closed:2016-02-15 03:50:20.000-0600
Priority:MajorRegression?
Status:Closed/CompleteComponents:Addons/chan_ooh323
Versions:1.8.20.1 Frequency of
Occurrence		Occasional
Related
Issues:
Environment:Attachments:( 0) From2069Asterisk_to_3003md110
( 1) From3003md110_to_2069Asterisk
( 2) h323_log
( 3) ooh323.conf
Description:I have a problem between an asterisk with Ericsson MD110 h323 trunk , the call did not audio after 30 seconds and falls,attached tcpdump
Comments:By: Asterisk Team (asteriskteam) 2016-02-05 12:35:29.548-0600

Thanks for creating a report! The issue has entered the triage process. That means the issue will wait in this status until a Bug Marshal has an opportunity to review the issue. Once the issue has been reviewed you will receive comments regarding the next steps towards resolution.

A good first step is for you to review the [Asterisk Issue Guidelines|https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines] if you haven't already. The guidelines detail what is expected from an Asterisk issue report.

Then, if you are submitting a patch, please review the [Patch Contribution Process|https://wiki.asterisk.org/wiki/display/AST/Patch+Contribution+Process].
By: Alessio Tidei (alex80) 2016-02-05 12:38:14.497-0600

Call
By: Alessio Tidei (alex80) 2016-02-05 12:38:34.041-0600

Call
By: Joshua C. Colp (jcolp) 2016-02-05 12:38:45.784-0600

Per the Asterisk versions page [1], the maintenance (bug fix) support for the Asterisk branch you are using has ended. For continued maintenance support please move to a supported branch of Asterisk. After testing with a supported branch, if you find this problem has not been resolved, please open a new issue against the latest version of that Asterisk branch.

Thanks!

[1] https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions


By: Alessio Tidei (alex80) 2016-02-05 12:38:52.791-0600

Call
By: Alessio Tidei (alex80) 2016-02-05 12:45:24.981-0600

Thank you Joshua
By: Asterisk Team (asteriskteam) 2016-02-05 12:45:25.753-0600

This issue has been reopened as a result of your commenting on it as the reporter. It will be triaged once again as applicable.
By: Alexander Anikin (may213) 2016-02-08 17:16:36.596-0600

Hi Alessio,

Did you test issue with supported asterisk version?
If the issue still here please reattach captures data with all tcp traffic between asterisk and md110.
The data exchange between asterisk and pbx is not on 1720 port only as you have h245tunneling is off on MD110.

By: Alessio Tidei (alex80) 2016-02-09 01:36:42.371-0600

I tested with the version 11.21.0 ,i have the same problem. I added the new files
By: Asterisk Team (asteriskteam) 2016-02-09 01:36:43.244-0600

This issue has been reopened as a result of your commenting on it as the reporter. It will be triaged once again as applicable.
By: Alexander Anikin (may213) 2016-02-11 07:29:34.222-0600

For some reason Asterisk don't start logical channels after TCS&MSD handshake with MD PBX

Will investigate about reasons.

By: Alexander Anikin (may213) 2016-02-11 16:37:38.233-0600

Hi Alessio,

Could you please set up tracelevel=6 in ooh323.conf section [general], make call afer ooh323 reload then attach here /var/log/asterisk/h323_log file?

Anyway MD do something wrong, there was no opened audio channels but MD send audio stream to asterisk.


By: Alessio Tidei (alex80) 2016-02-12 11:18:36.129-0600

Ok
By: Alexander Anikin (may213) 2016-02-14 06:10:00.548-0600

Alessio,

As i said before there is no terminal capabilities set acknownledge from MD.

17:54:29:244  Not opening logical channels as Cap exchange remaining
17:54:29:244  Finished handling H245 message. (incoming, ooh323c_2)
17:54:58:658  TerminalCapabilityExchange timeout. (incoming, ooh323c_2)
17:54:58:659  Built TerminalCapabilitySetRelease (incoming, ooh323c_2)

One of reason of lack of TCS ACK from MD can be different code framing between asterisk and MD, asterisk use 20ms by default in your config and MD110 user 30ms framing as it show in TCS packet.

Please set
allow=alaw:30,ulaw:30
in md110 section of ooh323.conf

then retest calls.

Also please check h.323 parameters in MD110 (faststart, h.245tunneling) if they are accessible for you. Better way is to switch on these.



By: Alessio Tidei (alex80) 2016-02-15 03:04:24.845-0600


I solved it by changing IP interface card from old ELU32 to new IPLU card.
Thank you
By: Alexander Anikin (may213) 2016-02-15 03:50:20.854-0600

Resolved by reporter, this is not a bug in OOH323 channel driver