Hello,

can you paste here the full content of such INFO request received by
kamailio (as text)?

The 408 means that kamailio tried to forward it, but the target didn't
reply.

Cheers,
Daniel


On 11.02.18 17:56, Wilkins, Steve wrote:
> Hi All, Alex
>
> Alex, you mentioned you might know why Kamailio is timing out do unanswered 
> INFO request from Asterisk.  I am still unable to resolve this, but I have 
> verified all the INVITES to the ACK's and they seem ok.  I do get connected 
> for about 30 seconds though, the call just drops after that and it does 
> appear to be caused by the none response to INFO requests.
>
> Thank you,
> -Steve
>
> -----Original Message-----
> From: sr-users [mailto:sr-users-boun...@lists.kamailio.org] On Behalf Of 
> Wilkins, Steve
> Sent: Wednesday, February 7, 2018 7:59 AM
> To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
> Subject: Re: [SR-Users] Request Timeouts
>
> Hi Alex,
>
> Thank you again for looking at this.  
>
> I am including a snippet of the last part of the Wireshark dump that occurs 
> right before the dropped call.  There are many of the very same INFO Request 
> going from Asterisk to Kamailio; there is also another INFO request in the 
> middle that was different (but only occurs a few times).  The INFO Requests 
> do have ;tag in the To header.
>
> I noticed that Asterisk replies '200 OK' to INFO request from Kamailio but 
> Kamailio does not send '200 OK' for INFO requests from Asterisk.  I did try 
> forcing Kamailio to send a '200 OK' when it gets an INFO request, but that 
> did not work.
>
> You will see that there are a bunch of INFO request to Kamailio from 
> Asterisk, then Kamailio sends a 408 Request Timeout , then Asterisk send a 
> BYE and call drops shortly after.
>
> Thank you!!,
> -Steve
>
> -----Original Message-----
> From: sr-users [mailto:sr-users-boun...@lists.kamailio.org] On Behalf Of Alex 
> Balashov
> Sent: Tuesday, February 6, 2018 8:34 PM
> To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
> Subject: Re: [SR-Users] Request Timeouts
>
> On Wed, Feb 07, 2018 at 01:31:43AM +0000, Wilkins, Steve wrote:
>
>> Hi Alex Thank you!, there is so much to learn.
>>
>> As you suggested, I looked at the CSeq and the Timeout is from an INFO 
>> message going from Kamailio to Asterisk.  Asterisk immediately sends 
>> "BYE" back to Kamailio and then the call drops.  This is why I was 
>> wondering if I needed to do anything for INFO messages.  "I think"
>> this is why some calls are dropping. Does this make any since?
> It does. Is the INFO message in-dialog[1] or out-of-dialog?
>
> [1] Does it have a ;tag attribute in the To header?
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
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Daniel-Constantin Mierla
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