[asterisk-bugs] [JIRA] (ASTERISK-20966) Getting UDPTL(SIP):Transmission error:Resource temporarily unavailable

[Matt Jordan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-20966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=201952#comment-201952 ] 

Matt Jordan commented on ASTERISK-20966:
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There haven't been any major changes in the UDPTL stack in any currently supported version of Asterisk.

Please provide a pcap showing the fax message traffic, your udptl.conf, your sip.conf, and the relevant portions of your extensions.conf.
                
>  Getting UDPTL(SIP):Transmission error:Resource temporarily unavailable
> -----------------------------------------------------------------------
>
>                 Key: ASTERISK-20966
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20966
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_cdr, Applications/app_fax
>    Affects Versions: 10.4.2
>         Environment: CentOS 5.6
>            Reporter: Ahmed Munir Chohan
>            Severity: Critical
>
> Getting UDPTL(SIP):Transmission error:Resource temporarily
> Postby ahmed.munir » Thu Jan 17, 2013 12:39 pm
> 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 effecingt the V-GW. There is no issue found in the V-GW side.
> I first open this ticket in 'Asterisk Support', they advised they there might be bugs in Asterisk 10.4.2. Is there a fix in Asterisk 10.12? If yes, please advise at earliest.

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