[asterisk-bugs] [JIRA] (ASTERISK-17303) Asterisk doesn't respond ACK to 200 OK retransmission

[Matt Jordan (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-17303?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Jordan closed ASTERISK-17303.
----------------------------------

    Resolution: Fixed

> Asterisk doesn't respond ACK to 200 OK retransmission
> -----------------------------------------------------
>
>                 Key: ASTERISK-17303
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-17303
>             Project: Asterisk
>          Issue Type: Bug
>          Components: Channels/chan_sip/Interoperability
>            Reporter: Andrey Solovyev
>            Severity: Minor
>         Attachments: retr_bug, uas_retr.xml
>
>
> It's written in SIP RFC
> 13.2.2.4 2xx Responses
> ..The ACK MUST be passed to the client transport every time a
>    retransmission of the 2xx final response that triggered the ACK
>    arrives.
> This probably is not an issue. I've noticed that asterisk doesn't send ACK when phone retransmitts OK.
> I've made a scenario for SIPp to reproduce this issue (it;s attached as uas_retr.xml). SIPp works in UAS mode and after receiving ACK it sends another OK to check if asterisk retransmitts ACK but asterisk just ignores this OK. 
> I've attached full asterisk debug log also.
> Sorry if am wrong. I might not understand SIP RFC correctly or have done wrong scenario.
> ****** ADDITIONAL INFORMATION ******
> To repruduce just run  on testhost1 'sipp -sf uas_retr.xml -i [testhost1_ip]' and make call from asterisk to SIP/testhost1_ip.



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