asterisk users - Apr 2018 - Asterisk behind NAT Early Media Video

Hello,

I have an Asterisk 15 with PJSIP behind NAT (Amazon EC2).

Now I would like to get Early Media Video working between clients in
different NATed networks. The 183 signalling goes trough perfectly, but
asterisk doesn't forward the Early Media RTP stream from the caller to the
recipent.

I have the following configuration:

[6001]
type = endpoint
context = internal
rewrite_contact = yes
direct_media = no
rtp_symmetric = yes
force_rport = yes
disallow = all
allow = alaw, ulaw, h264
aors = 6001
auth = auth6001

[6001]
type = aor
max_contacts = 2

[auth6001]
type=auth
auth_type=userpass
password=1234
username=6001

Is there a Solution for an such scenario?

Thanks

Benjamin
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On Mon, Apr 9, 2018, at 11:42 AM, Benjamin Marty wrote:
> Hello,
> 
> I have an Asterisk 15 with PJSIP behind NAT (Amazon EC2).
> 
> Now I would like to get Early Media Video working between clients in
> different NATed networks. The 183 signalling goes trough perfectly, but
> asterisk doesn't forward the Early Media RTP stream from the caller to
the
> recipent.
You would need to examine things specifically and see where media is flowing. Is
the recipient behind NAT? If so then until we receive media from them (wich may
or may not occur with early media) we may not have the correct target of media.

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

Yes, media is flowing through Asterisk because both client's are behind
different NAT's.

Do I need to do something special in the Call Flow? Or anything additional
to the pjsip.conf?

2018-04-09 16:50 GMT+02:00 Joshua Colp <jcolp at digium.com>:
> On Mon, Apr 9, 2018, at 11:42 AM, Benjamin Marty wrote:
> > Hello,
> >
> > I have an Asterisk 15 with PJSIP behind NAT (Amazon EC2).
> >
> > Now I would like to get Early Media Video working between clients in
> > different NATed networks. The 183 signalling goes trough perfectly,
but
> > asterisk doesn't forward the Early Media RTP stream from the
caller to
> the
> > recipent.
>
> You would need to examine things specifically and see where media is
> flowing. Is the recipient behind NAT? If so then until we receive media
> from them (wich may or may not occur with early media) we may not have the
> correct target of media.
>
> 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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