[asterisk-app-dev] early media (video)

[Fronc Hias]

ok, thanks - moving this post/thread to asterisk-users now...


On Tue, May 6, 2014 at 4:00 PM, Joshua Colp <jcolp at digium.com> wrote:

> Fronc Hias wrote:
>
>> Hi All,
>>
>
> Kia ora,
>
> I would suggest in the future you use the asterisk-users list for these
> sorts of questions as it has a wider audience.
>
>
>  I've been looking for information on how to use asterisk and early media
>> to allow for a video-preview of the caller at the callee's phone for
>> days... but I haven't been too successful :(
>>
>
> I'm not sure anyone in recent times has tried video in early media but it
> should theoretically work.
>
>
>  I found that there seems to be a company "2N Helios IP" which claims
>> (youtube-video) that "their" SIP server is able to provide early video
>> (using a Grandstream 3157v2 with "preview" enabled), but I would like to
>> have this with asterisk...
>>
>> I'm currently using asterisk 12.2.x.
>> I tried with all kinds of combinations of "prematuremedia" and
>> "progressinband" in sip.conf and many different
>> dialplan-extension-"scripts" but to no avail...
>>
>> sniffing with wireshark shows me, that the caller (doorstation) is
>> sending H.264 video but the RTP video stream is not passed on to the
>> callee by asterisk. (establishing a direct-video - without preview -
>> call does work of course)
>>
>> is it at all possible with a default asterisk installation? maybe using
>> chan_pjsip instead of chan_sip?
>>
>
> The channel driver shouldn't have an impact on this. The dialing operation
> is what relays the early media.
>
> I would suggest you move this conversation to asterisk-users and provide
> additional information (such as the dialplan, console output, and even turn
> on debug). I'll follow up there and perhaps others can chime in if they
> have attempted this as well.
>
> Cheers,
>
> --
> Joshua Colp
> Digium, Inc. | 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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