[asterisk-users] Enhanced Messaging and softphones

[Olivier]

Thanks for your (fast) reply !



Le ven. 18 janv. 2019 à 16:32, Joshua C. Colp <jcolp at digium.com> a écrit :

> On Fri, Jan 18, 2019, at 11:22 AM, Olivier wrote:
> > Hello,
> >
> > I've just read in [1] about SIP MESSAGE addition to both chan_pjsip and
> > ConfBridge.
> > It seems very interesting addition as it brings the capability to mix
> > voice, video and text in conferencing.
> >
> > On an other hand, there are some softphones (Zoiper, Bria, ...) that
> > tout voice, video and chat capability.
> > Though Enhanced Messaging solution described in [1] seems more
> > attractive to me in the long run, I wonder if it could easier to
> > quickly set a demo using softphone instead of a web application.
> >
> > In this case, was I'm failing to understand is is there anything
> > missing in Confbridge for chat conferencing with softphones.
> > May I add I read [2] which mentions sending of "custom JSON message".
> >
> > My questions are:
> >
> > 1. Do such softphones use compatible SIP MESSAGE to implement chat
> feature ?
> > If negative, what is the missing block that should be present along
> Asterisk ?
> >
> > 2. Is there a different class of clients (I'm think of Riot clients) as
> > opposed to softphones that support Confbridge voice, video and test
> > features ?
>
> I'm not aware of any softphone that supports the functionality. From a
> video perspective it has to support multiple video streams and displaying
> them (Asterisk doesn't do video transcoding or mixing).


You mean with a softphone you can't select a single (or several) video
among those available, can you ?
Even with DTMF sequence and some features.conf magic, a user cannot ask to
receive a specific video stream ?

(forgive me if my question seems naive or irrelevant but I didn't dare to
try or install anything yet)


> From a messaging perspective it has to support the JSON payload that
> Asterisk is using in ConfBridge. This conveys additional information that a
> straight up chat message wouldn't.
>
Do you mean Asterisk receives and send SIP messages with embeded JSON
Payload ?
Is there a specific name for such behaviour (something that could help to
check if a SIP library or client supports this) ?


>
> --
> Joshua C. Colp
> Digium - A Sangoma Company | Senior Software Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - US
> Check us out at: www.digium.com & www.asterisk.org
>
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