Hi, I do exchange PresentationIndicationToken before opening a extended video, after opening that and and an OLC some clients send presentationIndicationOwner too, so i think that must be optional.

but one consistent feature all clients had was that they all did send a MI packet for Extended Video,MI for main video was rare


On Fri, Feb 28, 2014 at 2:32 AM, Robert Jongbloed <robertj@voxlucida.com.au> wrote:
I am 99.9% sure that the logicalChannelActive message is redundant. I would be very surprised if it was necessary for the receiver as a channel is always active by default.

As said before, you have to manually send the presentation token PDU exchange via the "Presentation Role" menu before opening the secondary video.


Robert Jongbloed
OPAL/OpenH323/PTLib Architect and Co-founder.
Commercial support at http://www.voxlucida.com.au
Travelling, so email responses may be slow!

On 22/02/2014 12:48 am, Ankur Deep Jaiswal wrote:
Hi,
I also found that the remote end on a successful OLCACK(from H239 OLC) from openphone sends a MI(miscellaneous indication) packet specifying logicalchannelnumber and logicalchannelactive.
but openphone doesnt do the same thing.
it sends OLC, then on recieving OLCACK starts sending packets before sending MI and presentationTokenIndicateowner packets.

any idea.


On Thu, Feb 20, 2014 at 9:36 PM, Ankur Deep Jaiswal <ankur@techgentsia.com> wrote:
Hi,
I was checking out the new Openphone (version 3.12.9)

after getting a call i checked call->video control->presentation role
i then started call->video control->start sending, to start a H239 presentation

i see that openPhone doesnot send a presentationTokenIndicateowner after getting a successful OLCACK, as such the remote end does not show the transmitted H239 video.

But the reverse works fine, if we start presentation from remote end. it shows up fine on openphone.
i see that the remote end sends a presentationTokenIndicateowner to openphone.



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Ernakulam