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Re: [Linphone-developers] Video Talk Fails on Linphone-Android

From: 曹贵林
Subject: Re: [Linphone-developers] Video Talk Fails on Linphone-Android
Date: Tue, 17 Mar 2015 18:14:44 +0800

Hi Frank,
I think i have found the reason! I DID NOT check such settings:
- Settings/Network: 'Enable ICE';
- Settings/Video: 'Initiate video calls' and 'Accept incoming video request';

NOTE: ICE enables the two peers behind a NAT to communicate.

Thanks for reply;

Dennis Cao (曹贵林)
------------------ Original ------------------
Date:  Tue, Mar 17, 2015 11:00 AM
To:  "linphone-developers"<address@hidden>;
Subject:  Re: [Linphone-developers] Video Talk Fails on Linphone-Android
Hi Frank,
Sorry, I am not an expert at Wireshark.

As for my problem, I do not think it is caused by Asterisk. Becuause i can do video talk between the downloaded Linphones on mac and android, with the same Asterisk server. You mentioned the Linphone tracing on the Android devices, where are they? I will find and send it to you. 

Thanks for your reply!

Dennis (曹贵林)
------------------ Original ------------------
Date:  Tue, Mar 17, 2015 09:22 AM
To:  "linphone-developers"<address@hidden>;
Subject:  Re: [Linphone-developers] Video Talk Fails on Linphone-Android
Hi Dennis
It may need the tracing logs for analysing. Do you have:
1. WireShark tracing on Asterisk server, including signaling and media RTP for the video call;
2. Linphone tracings on HTC and SumSang if have.
By the way, both sides have the same video codec setting? As I know, Asterisk doesn't provide video transcoding by default.


发件人:"曹贵林" <address@hidden>
发送时间:2015-03-16 20:36
主题:[Linphone-developers] Video Talk Fails on Linphone-Android
HI buddies,
I succeed in building linphone-android. Commit Info:
    commit af7048f125da5714dd040c1d170bde0fff44dee8
    Author: Sylvain Berfini <address@hidden>
    Date:   Fri Mar 13 14:23:03 2015 +0100

I install this newly built app on my sumsang tablet and make a video call with another linphone on a HTC smartphone, via a asterisk server in public network. NOTE: the HTC phone has a linphone downloaded from the website (version: 2.0.2). But the video talk fails:
- Both side can not see the video from remote side;
- The HTC can hear the voice from samaung, which has my built linphone app installed; But the samsung cannot!
- after about 20-30 seconds, the connection is lost!

Can someone help me about this problem? Thanks in advance!

Dennis Cao (曹贵林)


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