<div dir="ltr"><div>FYI: Joshua Colp already replied to my initial post of this message in asterisk-app-dev. <br>he suggested to move it here (asterisk-users)</div><div><br></div><div>he so far stated, that early media/Video should theoretically work... but probably no one tried this in recent times...</div>
<div><br></div><div>looking foreward to receive further information, thanks!</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, May 7, 2014 at 9:09 AM, Fronc Hias <span dir="ltr"><<a href="mailto:fronc.hias@gmail.com" target="_blank">fronc.hias@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi All,<div><br></div><div>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 :(</div>
<div><br></div><div>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...</div>
<div><br></div><div>I'm currently using asterisk 12.2.x.</div><div>I tried with all kinds of combinations of "prematuremedia" and "progressinband" in sip.conf and many different dialplan-extension-"scripts" but to no avail...</div>
<div><br></div><div>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)</div>
<div><br></div><div>is it at all possible with a default asterisk installation? maybe using chan_pjsip instead of chan_sip?</div><div><br></div><div>do the "prematuremedia" and "progressinband" properties only apply to audio and not to video?</div>
<div><br></div><div>I think this feature is essential for a sip-device which is used as a door-station...</div><div><br></div><div>any information / idea is highly appreciated!</div><div>thanks,</div><div>Fronc</div></div>
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