[asterisk-dev] Intermittent one-way audio and call failure on trunk

[Taylor, Jonn]

On 07/13/2012 08:15 AM, Matthew Jordan wrote:
> ----- Original Message -----
>> From: "Jonn Taylor" <jonnt at taylortelephone.com>
>> To: "Asterisk Developers Mailing List" <asterisk-dev at lists.digium.com>
>> Sent: Friday, July 13, 2012 7:47:30 AM
>> Subject: Re: [asterisk-dev] Intermittent one-way audio and call failure on trunk
>>
>>
>> On 07/12/2012 05:15 PM, Matthew Jordan wrote:
>>> ----- Original Message -----
>>>> From: "Jonn Taylor" <jonnt at taylortelephone.com>
>>>> To: "Asterisk Developers" <asterisk-dev at lists.digium.com>
>>>> Sent: Thursday, July 12, 2012 4:05:28 PM
>>>> Subject: [asterisk-dev] Intermittent one-way audio and call
>>>> failure on trunk
>>>>
> <snip>
>
>>>> IAX devices. SIP trunk provider is bandwidth.com(level3).
>>> That's a lot of ground to cover.  In particular, chan_unistim
>>> received
>>> major updates for Asterisk 11 (more information here:
>>> https://wiki.asterisk.org/wiki/display/AST/Unistim+channel+improvements).
>>> You may want to try and narrow down the scope of your problems by
>>> limiting things to one particular technology at a time.
>> I have had one-way audio on SIP to SIP, SIP to IAX and SIP to USTM.
> Can you provide the firmware and other specifications for the
> actual devices you're having issues communicating with?  When you have
> issues communicating with them, is it consistent, or is it sporadic?
>
> <snip>
>
>>> 1) The first 200 OK we sent to the remote endpoint timed out.  The
>>> fact
>>> that the endpoint failed to respond in a timely fashion, then
>>> immediately
>>> sent a BYE after ACK'ing the two 200 OKs (the original and the
>>> re-transmit)
>>> points towards some error in the remote end point - or at least, we
>>> sent
>>> it something it didn't like.  This leads to...
>>> 2) You're transmitting ICE candidates to the remote endpoint, which
>>> may
>>> be freaking it out.  ICE is a new feature in Asterisk 11, and can
>>> be
>>> disabled in rtp.conf.
>> Is this enabled by default?
> Yes it is.  Set 'icesupport' to false to disable it.  If that does not
> resolve your issues, we'll have to get some more information as to what
> is actually happening.  In that case, we'll re-open your JIRA issue and
> track the debugging there.

Disabling ICE helped a lot, just need to do more testing!!! Maybe the 
default should be disabled. I know that enabling new features encourages 
them to get used but this could cause a lot people trouble.

Just my 2 cents.

>
> --
> Matthew Jordan
> Digium, Inc. | Software Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> Check us out at: http://digium.com & http://asterisk.org
>
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