Hello,

My reply with attached logs and pcap is awaiting moderator . . .
in the meantime . . . here is the text . . .

Thanks Matt,

James.

On 28 May 2014 16:44, James Coleman <[email protected]>wrote:

> Great, Thanks very much Matt, . . .
>
> The full logs for those times are gone. :-7
> However just now I did chat and airport mode and got a sprout core.
> I have collected .pcap and logs* (see attached)* . . . however I realise
> now sprout debug logging is not on.
> Anyway I will send these to you and turn up sprout logging and do it again.
>    I presume the full sprout debug logs would be useful.
>
> I find Wireshark - Telephony - VoIP flow is quite useful to get an
> overview of what is happening.
> Can see that the BYE messages go a bit funny.
> I'm not sure why but the handset that doesn't go into airport mode
> initiates BYE.
> I'm guessing something happening on the MSRP session triggered that.
>  I should capture debug or .pcap on the MAS to see that.
> BYE from that handset transitions through sprout to MAS okay
> BYE from MAS to other handset is retried . . . every 4 secs . . . 8 times
>  408 request timeout response to BYE
>  408 request timeout response to an OPTIONS
>  OPTIONS
>  100 trying
>  480 temporarily unavailable response to OPTIONS
> **sprout core dump**
>
>
> answering questions inline below . . . in colour . . .
>
>
> Thanks for digging into this!
>
> James.
>
>
>
> On 28 May 2014 15:11, Matt Williams <[email protected]> wrote:
>
>> James,
>>
>> Thanks for raising this issue - I've been digging into it.
>>
>> I was hoping I could get a bit more detail on the SIP flow here.  I've
>> stated what I understand (with some gaps) below - please could you correct
>> any errors, and provide any missing details?
>> - You're sending a SIP MESSAGE from one UE.
>> - You're trying to send the SIP MESSAGE to another UE that is registered
>> but uncontactable (because it's in airplane mode).
>>
>
> *Yes. A normal chat session happens first. *
> *INVITE from one handset -> bono -> sprout -> mas -> sprout -> bono ->
> other handset*
> * then 200 ok*
> * then ACK*
> * then chat messages exchange on MSRP session*
> *I have just one ims and one mas so anything going to mas (OPTIONS or
> INVITES or other messages) comes straight back out on the other leg.*
>
>
>> - You're going via an AS.  (Is that right?)
>
> - What (if anything) does the AS do to the SIP flow?
>>
>
> *Yes. . . sprout -> mas -> sprout generally for SIP messages . . . *
> *The flow is split into 2 legs (handset1 to mas and mas to handset2).*
> *MSRP session for chat or file transfer or other happens on MAS.*
>
>
>> - Do you have I-CSCF enabled?
>>
>
> *I think so, in /etc/clearwater/config:*
> *# I-CSCF/S-CSCF configuration *
>
> *scscf=5054icscf=5052My clearwater node is an all-in-one single-node
> instance in Amazon.*
>
>
>> - Do you have Rf billing enabled?
>>
>
> *No, ralf is not running (or installed I think).*
>
>
>>
>> Also, is it possible to share the full logs, right from the initial
>> receipt of the SIP MESSAGE (maybe as an attachment rather than inline)?
>>
>
> *Yes, well, . . :) see attached and I'm turning up debug now to get some
> more . . .*
>
>
>> Please let me know.
>>
>> Thanks for your help,
>>
>> Matt
>>
>>

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