[OpenSIPS-Users] Presence Error messages

[Ovidiu Sas]

It might be that the phone is generating a SUBSCRIBE with a particular
SIP-If-Match header.
For each line-seize subscription, a notification is sent out.
If a SUBSCRIBE with a particular SIP-If-Match header is received, but
no SIP-ETag is matched, a new notification is generated, but it seems
that the phone ignores it and re-sends the subscription.

Having the full pcap will help understand what's going on here.

Regards,
Ovidiu Sas

On Fri, Mar 20, 2015 at 3:54 PM, Peter Kust
<peter.kust at businessuites.com> wrote:
> I’m running a rotating packet capture right now, but at the moment that
> error hasn’t resurfaced since I started the capture.
>
>
>
> What is perplexing to me is that I have never seen in my logs a PUBLISH with
> that particular etag (as pulled from the sip-if-tag header on the received
> PUBLISH).  Only once have I even seen that etag in the presentity table.
> Yet somewhere that etag has survived complete reboots of the involved phones
> and opensips itself.  Where do I look to see what might be hanging on to
> that etag (presumably erroneously)?
>
>
>
> Also, it seems that the update_presentity is being called by SUBSCRIBE, not
> PUBLISH
>
>
>
> Mar 20 10:20:31 proxy-2 o[21911]: [83693] SUBSCRIBE [line-seize:15]
> sip:SLA-4103855210-1 at X.X.X.X From:sip:SLA-4103855210-1@ X.X.X.X
> To:sip:SLA-4103855210-1@ X.X.X.X Call-ID:4925925-382640b2@ Y.Y.Y.Y
> Cseq:40035 Contact:"5210" <sip:SLA-4103855210-1 at Y.Y.Y.Y:5062> <
> Y.Y.Y.Y:5062>
>
> Mar 20 10:20:31 proxy-2 o[21911]: ERROR:presence:update_presentity: No E_Tag
> match [ff5ad69c9be06cffaa136492f4fb3b50]
>
> Mar 20 10:20:31 proxy-2 o[21911]: INFO:presence:update_subscription: notify
>
> Mar 20 10:20:31 proxy-2 o[21911]: INFO:presence:send_notify_request: NOTIFY
> sip:SLA-4103855210-1@@ X.X.X.X via sip:SLA-4103855210-1@ Y.Y.Y.Y:5062 on
> behalf of sip:SLA-4103855210-1@@ X.X.X.X for event line-seize,
> to_tag=e92fa9072a6867d6d6f7ec7d0c504ad5-5cd1, cseq=1
>
>
>
> So I am trying to figure out where that etag is hiding.  Because from what I
> can see it shouldn’t be getting referenced at all.
>
>
>
> Cordially,
>
>
>
> Peter Nayland Kust
>
> Director of Technologies
>
> BusinesSuites
>
> 24624 Interstate 45 North, Suite 200
>
> Houston, TX 77386
>
> Tel:  281.378.8051
>
> Fax:  855.287.6961
>
> peter.kust at businessuites.com
>
> From: Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
> Sent: Friday, March 20, 2015 11:49 AM
> To: OpenSIPS users mailling list; Peter Kust
> Subject: Re: [OpenSIPS-Users] Presence Error messages
>
>
>
> Hi Peter,
>
> The first error means: the presentity your PUBLISH tries to update (using
> etag as reference) does not exist anymore. The etag is created on the first
> PUBLISH and sent back to publisher - it will use this etag each time it
> wants to update that particular presentity.
>
> Maybe the re-publishing is too late and the presentity is already expired in
> opensips memory.
>
> Do you have dbg logs + pcap for this ?
>
> Best regards,
>
> Bogdan-Andrei Iancu
>
> OpenSIPS Founder and Developer
>
> http://www.opensips-solutions.com
>
> On 19.03.2015 17:10, Peter Kust wrote:
>
> I am attempting to troubleshoot what I think is a presence/b2b_sca issue.
>
>
>
> I keep getting an error message from presence as follows:
>
> ERROR:presence:update_presentity: No E_Tag match
> [ff5ad69c9be06cffaa136492f4fb3b50]
>
>
>
> At some point during the day, I will see this error message:
>
> ERROR:presence:handle_subscribe: in event specific subscription handling
>
>
>
> At this point, an outbound call from a line appearance provisioned to the
> b2b_sca module fails.  The outbound call is being attempted from a Cisco
> SPA525G2, and the message on the phone screen shows “no line”—despite
> happening at a time when it is known there are no calls on the system that I
> can see.  The observed behavior of the phone is to show “No line”, and the
> phone itself gets a
>
>
>
> What do these error messages mean?  What is the system trying to tell me?  I
> am trying to get my brain around what the error messages are saying so I can
> figure out where to look next in my troubleshooting.  The proxy is
> functioning well in all other respects.
>
>
>
> Cordially,
>
>
>
> Peter Nayland Kust
>
> Director of Technologies
>
> BusinesSuites
>
> 24624 Interstate 45 North, Suite 200
>
> Houston, TX 77386
>
> Tel:  281.378.8051
>
> Fax:  855.287.6961
>
> peter.kust at businessuites.com
>
>
>
>
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>
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>
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>
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>
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