[asterisk-bugs] [JIRA] (ASTERISK-26052) Asterisk hangs with a T.38 call

[Max Hofmann (JIRA)]

Max Hofmann created ASTERISK-26052:
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             Summary: Asterisk hangs with a T.38 call
                 Key: ASTERISK-26052
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26052
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_sip/General, Channels/chan_sip/T.38
    Affects Versions: 11.6.0
         Environment: Ubuntu 14.04.04 LTS
VMWare Host
            Reporter: Max Hofmann


Setup: ipv4 and ipv6 environment

1. Faxcall comes from an Asterisk 11.6 cert 11 with UDPTL to another Asterisk 11.6 cert 13 over ipv4. (Works!)

2. Asterisk 11.6 cert 13 calls a FritzBox over ipv6. 
On the FritzBox are no FAX devices connected, only phones.

3. The Phone behind the FritzBox is ringing and after offhook asterisk bridge the with UDPTL and asterisk begin to hang.

We se that the RecvQ get full:
udp6  213248      0 :::5060                 :::*                                2180/asterisk
udp6  213248      0 :::17832                :::*                                2180/asterisk
udp6   51648      0 :::17833                :::*                                2180/asterisk
udp6  213248      0 :::17910                :::*                                2180/asterisk
udp6       0      0 :::4140                 :::*                                2180/asterisk




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