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

[Ahmed Munir Chohan (JIRA)]

Ahmed Munir Chohan created ASTERISK-20966:
---------------------------------------------

             Summary:  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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