[Asterisk-video] Asterisk and video contents for 3G network

[tech at i6net.com]

Have any one test an Asterisk throw a 3G gateway (constuctor, reference) ?
How to you generate the video contents to pass throw the 3G GW (tool to manage
the video files .h263)?
The encoding, bitrate and timing seems to be very important to have a good
quality on the 3G phone... how control this parameters ?


i6net


Selon Sergio García Murillo <Sergio.Garcia at ydilo.com>:

>
> H223 Annex B without double headres (H324M level 2).
> If you are looking at the UCLA/Samsung h223 simulator i understand that you
> think it's not easy, but i have still not found any device (phone or
> gateway), that implements annex C.
> I use zaptel and a libpri, it would need some modification in order to be
> configurable, but hardcoding the q931 setup info is quite easy.
>
> ________________________________
>
> From: asterisk-video-bounces at lists.digium.com
> [mailto:asterisk-video-bounces at lists.digium.com] On Behalf Of Ramtin Amin
> Sent: lunes, 24 de julio de 2006 8:26
> To: Development discussion of video media support in Asterisk
> Subject: RE: [Asterisk-video] H324M 3G ISDN
>
>
> Well I'm working on ir currently
> So if we want to do it, since it doesn't look that easy, we better share our
> knowledge about it.
> Sergio: In H223, which annexe is used ?
> I've found some interesting stuff capable of handling the H223+245 but I
> wanted to understand it more and when you look at the ITU, and it gets into
> the Golay(24,12) and BCH code, it starts to become more complicated :)
> Tell us more about your expiriance: you modified the libpri for answering
> correctly the q.931 ? You use /don't use  zaptel ? How do you capture raw
> data ? cat /dev/zap/12 ? or with an app_zapgrab ?
> DO you use BRI or PRI ?
>
>
>
>
>
>
>
>
>
> ________________________________
>
> 	Subject: RE: [Asterisk-video] H324M 3G ISDN
> 	Date: Mon, 24 Jul 2006 08:15:06 +0200
> 	From: Sergio.Garcia at ydilo.com
> 	To: asterisk-video at lists.digium.com
>
>
> 	Hi everyone,
>
> 	    It's good to see that i'm not the only one developping int this subject.
> 	I have been working on an h234M library, i have finished AL1 and AL2 of h223
> (level 2 profile), and almost finished the h245 negotiators. I have been able
> to establish a videocall between an asterisk box and a motorola phone, but
> i'm having problems with the negotiations on other phones.
> 	Are any one of you going to start an open source proyect?
>
> 	Greetings
> 	    Sergio
>
>
>
> ________________________________
>
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