[asterisk-users] Asterisk behind NAT Early Media Video

[Benjamin Marty]

Hi Florian

I already have the external_media_address set in the PJSIP setup. Also the
external_signaling_address is set to the Public IP. If I make a call from
an Early Media (video&audio) capable device to an Early Media capable
device (also video&audio) the Early Media audio works perfectly. But no
video. If I sniff with wireshark on the recipent device I just see G711
(audio) RTP traffic. The h264 RTP traffic is missing before I accept the
call. After accepting the call the h264 RTP traffic comes through.

The 183 SIP protocoll comes through. Even Asterisk is noticing it:
-- PJSIP/6002-00000013 is making progress passing it to PJSIP/6001-00000012

I tried both Asterisk 15 with pjsip.conf configuration and Asterisk 13 with
sip.conf (chan_sip). In both cases I just put the both case
AST_FRAME_VIDEO: statements before the two voice cases, like in your diff
and recompiled/reinstalled.

Regards

Benjamin



2018-04-10 9:37 GMT+02:00 Floimair Florian <f.floimair at commend.com>:

> Hi Benjamin!
>
> You're obviously using a similar scenario that I have in place for testing.
> I initially had issues with early media (not only video also audio) as
> well in that scenario. What I had to do was to additionally set
>
> external_media_address=<your external IP>
>
> in pjsip.conf
>
> Also, as I wrote the patch for early-media video I'd be interested in any
> feedback from it.
>
>
>
>
> With best regards
>
> Florian Floimair
> Innovation - Software-Development -  VoIP & DevOps
>
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> Von: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] Im Auftrag von Joshua Colp
> Gesendet: Montag, 9. April 2018 18:15
> An: asterisk-users at lists.digium.com
> Betreff: Re: [asterisk-users] Asterisk behind NAT Early Media Video
>
> On Mon, Apr 9, 2018, at 1:05 PM, Benjamin Marty wrote:
> > wohoo, so if I unterstand it correctly with that patch early media
> > video works over the Asterisk server? In other words the Asterisk
> > server get's able to (process/)forward the early media video stream with
> that patch?
>
> The patch forwards video while in an early media state before the call is
> answered and bridged, yes.
>
> --
> Joshua Colp
> Digium, Inc. | Senior Software Developer
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