[asterisk-bugs] [JIRA] (ASTERISK-25476) chan_sip looses registrations after a while

[Michael Keuter (JIRA)]

Michael Keuter created ASTERISK-25476:
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             Summary: chan_sip looses registrations after a while
                 Key: ASTERISK-25476
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25476
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_sip/Registration
    Affects Versions: 11.20.0
         Environment: AstLinux 1.2.4
            Reporter: Michael Keuter


In Asterisk 11.20.0 looses registrations of some IP-phones on several systems after a while. In Asterisk the phone then shows "unreachable", while the phone's status show "Registered". Going back to Asterisk 11.19.0 solves the problem. The phones are mostly Yealink phones, different models with different firmwares, none of them were recently upgraded. Dis-/enbling the phone's account or rebooting the phone makes it work again for a while, but the the registrations fails again.

I attach a SIP trace of a Yealink W52P DECT base with 2 handsets (331/332). "qualify=yes" is enabled, after a while Asterisk stops sending Option packets to ext. 331 while keeps sending packets to 332.



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