[Freeswitch-users] mod_sms chat messages delivery notification

[Sergey Safarov]

Let me guess - you are using linphone with not fully implemented RFC5438
<http://www.linphone.org/news/54/26/IM-Delivery-status-now-available-in-Linphone-for-iOS-and-Android.html>
RFC requires to use Message-ID for such purpose
https://tools.ietf.org/html/rfc5438#section-6.3

The IM Sender MUST include the Message-ID header field in the IM for
   which he wishes to receive an IMDN.


https://tools.ietf.org/html/rfc5438#section-7.1.1.1

If the IM Sender requests the reception of IMDNs, the IM Sender MUST
   include a Message-ID header field.


On one project customer already have issue with IMDN looping because
linphone non RFC compliant.

Customer resolved issue by implemented RFC compliant IMDN in linphone.

Sergey



ср, 15 нояб. 2017 г. в 14:52, Marko Djuric <Marko.Djuric at amphinicy.com>:

> Looping should be avoided by checking the X-FS-Sending-Message header.
> Still, changing the Call-ID may present another set of issues.
> Is it possible to read the Call-ID from the chatplan, in the similar
> manner how it's done in dialplan, other than parsing it from SIP trace?
>
> Thank you for response,
> Marko
>
> > -----Original Message-----
> > From: Sergey Safarov [mailto:s.safarov at gmail.com]
> > Sent: Tuesday, November 14, 2017 4:24 PM
> > To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
> > Subject: Re: [Freeswitch-users] mod_sms chat messages delivery
> notification
> >
> > My experiance say that Call-ID change is required to prevent message
> loops.
> > Looks like need to use other header or field to correlate messages.
> >
> >
> > вт, 14 нояб. 2017 г., 13:44 Marko Djuric <Marko.Djuric at amphinicy.com
> > <mailto:Marko.Djuric at amphinicy.com> >:
> >
> >
> >       Hi all,
> >
> >       We're using mod_sms for SIP SIMPLE messaging with delivery
> > notifications
> >       (message/imdn+xml).
> >       The Call-ID is changed in the chatplan, and this causes issues with
> > matching
> >       the delivery notifications to the original message.
> >
> >       Changing the Call-ID itself is not an issue, but I'm wondering if
> it is
> >       possible to read the original Call-ID and/or manually set the
> Call-ID in
> > the
> >       chatplan.
> >
> >       The message:getHeader("sip_call_id") does not contain the Call-ID.
> My
> >       understanding is that this is due to skip_global_process=false
> variable
> > set
> >       by mod_sms.
> >       Setting the sip_call_id variable also does not produce a desired
> effect,
> > as
> >       it is added as another header instead of setting the Call-ID one.
> >
> >       The question is - how to match the messages before and after the
> > chatplan?
> >
> >       Any help is appreciated.
> >
> >       Thank you!
> >       Marko
> >
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