asterisk users - Jan 2013 - Getting UDPTL (SIP): Transmission error: Resource temporarily unavailable

Hi,

I configured Asterisk 10 for inbound fax, for couple of weeks I didn't see
any issues until today. The setup  I configured for inbound fax is quite
simple i.e. Cisco Voice GW sends the fax calls to Asterisk using T.38
protocol and later Asterisk stores/forwards the fax to specific end user.

The configuration I made in sip.conf for enabling T38 is listed below;

t38pt_udptl = yes,fec,maxdatagram=400
faxdetect = t38

And in udptl.conf, I just uncommented 'use_even_ports = yes
;' and rest of it set as default.


Here is the error I'm usually seeing in Asterisk side;

[Jan 15 14:13:28] NOTICE[20514] udptl.c: UDPTL (SIP/10.3.22.6-00000ad6):
Transmission error to 10.3.22.6:18428: Resource temporarily unavailable

If this notice comes, it occurs repeatedly unless I need to restart the
asterisk service. For some reason it also effect the V-GW.

Please advise what is the reason that I'm getting this message and how can
I avoid it?


-- 
Regards,

Ahmed Munir Chohan
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Can you be more specific about your Asterisk version? 10.xx.yy ?

Sounds like some sort of resource leak.


On Tue, Jan 15, 2013 at 3:02 PM, Ahmed Munir <ahmedmunir007 at
gmail.com>wrote:
> Hi,
>
> I configured Asterisk 10 for inbound fax, for couple of weeks I didn't
see
> any issues until today. The setup  I configured for inbound fax is quite
> simple i.e. Cisco Voice GW sends the fax calls to Asterisk using T.38
> protocol and later Asterisk stores/forwards the fax to specific end user.
>
> The configuration I made in sip.conf for enabling T38 is listed below;
>
> t38pt_udptl = yes,fec,maxdatagram=400
> faxdetect = t38
>
> And in udptl.conf, I just uncommented 'use_even_ports = yes
> ;' and rest of it set as default.
>
>
> Here is the error I'm usually seeing in Asterisk side;
>
> [Jan 15 14:13:28] NOTICE[20514] udptl.c: UDPTL (SIP/10.3.22.6-00000ad6):
> Transmission error to 10.3.22.6:18428: Resource temporarily unavailable
>
> If this notice comes, it occurs repeatedly unless I need to restart the
> asterisk service. For some reason it also effect the V-GW.
>
> Please advise what is the reason that I'm getting this message and how
can
> I avoid it?
>
>
> --
> Regards,
>
> Ahmed Munir Chohan
>
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>                http://www.asterisk.org/hello
>
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>    http://lists.digium.com/mailman/listinfo/asterisk-users
>


-- 
-Chris Harrington
ACSDi Office: 763.559.5800
Mobile Phone: 612.326.4248
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Hi Christopher,

I'm using Asterisk 10.4.2. Do I need to install updated version to resolve
this issue? Please advise.

> ------------------------------
>
> Date: Tue, 15 Jan 2013 15:45:31 -0600
> From: Christopher Harrington <chris at acsdi.com>
> Subject: Re: [asterisk-users] Getting UDPTL (SIP): Transmission error:
>         Resource temporarily unavailable
> To: Asterisk Users Mailing List - Non-Commercial Discussion
>         <asterisk-users at lists.digium.com>
> Message-ID:
>         <CAJLBXEnTkUOp> cKcFQh2NtZbZxUhu+vSgqVbN+nQc5gyTdKvGw at
mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Can you be more specific about your Asterisk version? 10.xx.yy ?
>
> Sounds like some sort of resource leak.
>
>
> On Tue, Jan 15, 2013 at 3:02 PM, Ahmed Munir <ahmedmunir007 at gmail.com
> >wrote:
>
> > Hi,
> >
> > I configured Asterisk 10 for inbound fax, for couple of weeks I
didn't
> see
> > any issues until today. The setup  I configured for inbound fax is
quite
> > simple i.e. Cisco Voice GW sends the fax calls to Asterisk using T.38
> > protocol and later Asterisk stores/forwards the fax to specific end
user.
> >
> > The configuration I made in sip.conf for enabling T38 is listed below;
> >
> > t38pt_udptl = yes,fec,maxdatagram=400
> > faxdetect = t38
> >
> > And in udptl.conf, I just uncommented 'use_even_ports = yes
> > ;' and rest of it set as default.
> >
> >
> > Here is the error I'm usually seeing in Asterisk side;
> >
> > [Jan 15 14:13:28] NOTICE[20514] udptl.c: UDPTL
(SIP/10.3.22.6-00000ad6):
> > Transmission error to 10.3.22.6:18428: Resource temporarily
unavailable
> >
> > If this notice comes, it occurs repeatedly unless I need to restart
the
> > asterisk service. For some reason it also effect the V-GW.
> >
> > Please advise what is the reason that I'm getting this message and
how
> can
> > I avoid it?
> >
> >
> > --
> > Regards,
> >
> > Ahmed Munir Chohan
> >
> >
> > --
> > _____________________________________________________________________
> > -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> > New to Asterisk? Join us for a live introductory webinar every Thurs:
> >                http://www.asterisk.org/hello
> >
> > asterisk-users mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> >
>
>
>
> --
> -Chris Harrington
> ACSDi Office: 763.559.5800
> Mobile Phone: 612.326.4248
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-- 
Regards,

Ahmed Munir Chohan
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On Tuesday 15 January 2013, Ahmed Munir wrote:
> Hi,
> 
> I configured Asterisk 10 for inbound fax, for couple of weeks I didn't
see
> any issues until today. The setup  I configured for inbound fax is quite
> simple i.e. Cisco Voice GW sends the fax calls to Asterisk using T.38
> protocol and later Asterisk stores/forwards the fax to specific end user.
> 
> The configuration I made in sip.conf for enabling T38 is listed below;
> 
> t38pt_udptl = yes,fec,maxdatagram=400
> faxdetect = t38
> 
> And in udptl.conf, I just uncommented 'use_even_ports = yes
> ;' and rest of it set as default.
> 
> 
> Here is the error I'm usually seeing in Asterisk side;
> 
> [Jan 15 14:13:28] NOTICE[20514] udptl.c: UDPTL (SIP/10.3.22.6-00000ad6):
> Transmission error to 10.3.22.6:18428: Resource temporarily unavailable
> 
> If this notice comes, it occurs repeatedly unless I need to restart the
> asterisk service. For some reason it also effect the V-GW.
> 
> Please advise what is the reason that I'm getting this message and how
can
> I avoid it?
That looks a bit like the result of an IP address clash, especially as it is 
affecting more than one device.  If there are two "10.3.22.6"s on your
network,
then exactly this sort of thing can happen.

Unplug "10.3.22.6", and try pinging it.  If something answers, then
you indeed
have a clash.  Check your DHCP server configuration, and make sure any 
manually-assigned addresses are outside its pool of addresses.



-- 
AJS

Answers come *after* questions.

I'm not using the DHCP server configuration and IP addresses  assigned in
the network are manual and there are no clashes found in the network.

The version of Asterisk I'm using is 10.4.2. I think there might be some
issues in this version perhaps I may try to upgrade to 10.12.

UDPTL (SIP/10.3.22.6-00000ad6): Transmission error to 10.3.22.6:18428:
Resource temporarily unavailable.

Due to above message, it is badly effecting the V-GW and later I need to
restart the Asterisk service.

Any thoughts on this?


Date: Thu, 17 Jan 2013 15:30:18 +1300
> From: Pete Mundy <pete at fiberphone.co.nz>
> Subject: Re: [asterisk-users] Getting UDPTL (SIP): Transmission error:
>
> On 17/01/2013, at 4:35 AM, A J Stiles <asterisk_list at
earthshod.co.uk>
> wrote:
>
> > Unplug "10.3.22.6", and try pinging it.  If something
answers, then you
> indeed
> > have a clash.  Check your DHCP server configuration, and make sure any
> > manually-assigned addresses are outside its pool of addresses.
>
> If you do this test, remember to make sure to keep pinging with the host
> disconnected for minimum 30 seconds so as to give your local OS's arp
table
> a chance to time out (or manually delete the original ARP entry before
> starting the ping).
>
> Pete
>
> --
Regards,

Ahmed Munir Chohan
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