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

[Alan]

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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