[asterisk-users] What is SIP Early Media useful for ?

[Olivier]

I think it's very difficult:
most SIP communications are done with SDP data passed in INVITE message.
So basically, Callee is able to send Early Media to Caller but the opposite
can't happen until Callee has sent back its SDP data, which happens when
Callee accepts the incoming call.

Maybe a "smart" Caller could read where reverse Early Media comes from and
this address to send Early Media.

2016-02-04 15:10 GMT+01:00 Alan <lameventanas at gmail.com>:

> I've always wondered if early media with video would allow to see who
> is calling before answering.
> Is it possible? Is anybody doing this?
>
> On Wed, Feb 3, 2016 at 11:56 PM, Olivier <oza.4h07 at gmail.com> wrote:
> > Hello,
> >
> > Could you help me to summarize what is SIP Early Media useful for ?
> >
> > I was thinking of:
> > - Passing error messages to caller,
> > - Custom ringing tones to caller.
> >
> > Did I miss something ?
> >
> > Best regards
> >
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