[Freeswitch-users] Cannot get verto video conf demo working

[Tao Zhang]

Hi,

I am new to FreeSwitch, WebRTC and etc.. so please bear with me. :-)

I tried to set up the latest FreeSwitch Video Conf demo on my server and
could not get it working. I can call extension 3500 and enter the conf, but
I only see a black area with no video and no sound. On the other hand, if I
access the official video conf demo page
https://conference.freeswitch.org/verto/#page-main from FreeSwitch, it
works fine.

I have been trying to figure out what is wrong with my FS setup. I cannot
see any obvious errors from the FS server log and from the JS console. But
from the chrome://webrtc-internals/, two ssrc_xxxx_send stats show bytes
sent are zero. Also two ssrc_xxxx_recv stats show bytes received also zero.
So it seems there is some problem related to the peer connection between
the client and the FS server?

I also noticed another difference in webrtc-internals outputs between my
server setup and the official working one. For my set up, Channel-video-1
shows:

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Channel-video-1


Statistics Channel-video-1timestamp10/6/2015, 5:48:56 PMgoogComponent1
localCertificateId
googCertificate_29:3D:26:CC:D2:E0:1D:35:1E:0B:66:EA:B4:08:B7:FC:EE:FC:7B:0A:76:C5:6F:AE:B7:BD:D4:7B:73:10:E6:F7
selectedCandidatePairIdConn-video-1-0


>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

For the official setup, Channel-video-1 shows:

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Statistics Channel-video-1timestamp10/6/2015, 5:37:53 PM
selectedCandidatePairIdConn-video-1-0googComponent1dtlsCipher
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHAlocalCertificateId
googCertificate_56:D3:CE:E1:0C:81:05:2A:FB:E7:17:3F:34:FB:21:F3:DD:F8:67:99:65:2D:D6:41:57:76:64:3A:ED:00:96:01
remoteCertificateId
googCertificate_EB:11:4A:1F:D3:CE:18:2B:16:CE:6A:F4:71:5D:F6:A6:9E:22:63:8C
srtpCipherAES_CM_128_HMAC_SHA1_80

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

I guess the dtls-srtp connection is not set up properly, since remoteCert
and other fields are missing in the webrtc-internals dump for my setup. But
I cannot find any related error msgs and I have no idea how to debug
further. Could anybody help?

Thanks so much

Tao
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