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

[Matthew Jordan]

----- 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.

--
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