[Freeswitch-users] Video calls over SIP

Norman Laidla norman.laidla at telegrupp.ee
Mon Sep 8 13:31:13 MSD 2014

Hey, Daniel!

VP8 isn't an option, unfortunately. I'm stuck with H.263, H.263+ and H.264, because that's all that the Cisco SX-20 supports. And my boss is somewhat adamant about using FreeSWITCH, since the office's IP phones run on it.

And calling it "tricky" is a bit of an understatement. :)

Best regards,
From: freeswitch-users-bounces at lists.freeswitch.org on behalf of Daniel Ivanov
Sent: Monday, September 8, 2014 11:04 AM
To: FreeSWITCH Users Help
Subject: Re: [Freeswitch-users] Video calls over SIP

Well, to be honest with you, it's a bit tricky, but certainly not impossible. I was pushing my way into videoconferencing a few weeks ago with webRTC and mod_conference, but the results were far from flawless. For our requirements, we went with classic streaming tech. For now, you can use google hangouts or prepare for a knee-fight with mod_vp8.

On Mon, Sep 8, 2014 at 8:55 AM, Norman Laidla <norman.laidla at telegrupp.ee<mailto:norman.laidla at telegrupp.ee>> wrote:
Good day,

I've been setting up a video conferencing system in our office. We have a Cisco SX-20 set that we intend to use, but so far, there's been little in the way of progress. In short, video calls don't work.

Here's what I'm working with: a Debian server running the latest stable FreeSWITCH build, two laptops with Zoiper and the Cisco SX-20. Audio-only calls work without a hitch, problems arise when I try to start the video stream. The only way to get any kind of image to reach one endpoint from another is to set FS to bypass media and make a video call between my laptop and the SX-20, in which case the outgoing feed from the laptop reaches the SX-20 as a jumbled mess of colors and the occasional still frame. Setting FS to proxy media allows no video to reach the SX-20 and causes a loopback in both laptops. The default setting doesn't do video at all.

Funny thing is, if the call is originated from the SX-20, its control panel shows an outgoing video stream, but nothing ever reaches the other endpoint. I'm beginning to think that doing a video conferencing setup with FreeSWITCH is a fool's errand. If anyone has done something of the sort before, I would welcome your advice.

Best regards,
Norman Laidla

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