[SR-Users] WebClients ( WebSocket ) long audio porblem

[Yuriy Gorlichenko]

Hello. I hawe porblem with based at websocket transport clietns. I use wss
and with chain sertificate.
When I do call with this sert signalling goes normally but sound starts
after fiev seconds of picking up. I debug RTP with tshark at my servers and
localize issue at the kamailio. Ussue dissapears when I use sertificate
without chain.

[Daniel-Constantin Mierla]

Hello,

are you using any rtp relay application on server? If yes, which one?

kamailio itself is not handling rtp packets, so no delay can be
introduced by it.

On the other hand, webrtc uses ice to negotiate rtp relaying, and that
can take several seconds.

Cheers,
Daniel

Post by Yuriy Gorlichenko
Hello. I hawe porblem with based at websocket transport clietns. I use
wss and with chain sertificate.
When I do call with this sert signalling goes normally but sound
starts after fiev seconds of picking up. I debug RTP with tshark at my
servers and localize issue at the kamailio. Ussue dissapears when I
use sertificate without chain.
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

[Yuriy Gorlichenko]

yes. We using rtpengine last release (previous gave same result) with
rtpproxy-ng module

Post by Daniel-Constantin Mierla
Hello,
are you using any rtp relay application on server? If yes, which one?
kamailio itself is not handling rtp packets, so no delay can be introduced
by it.
On the other hand, webrtc uses ice to negotiate rtp relaying, and that can
take several seconds.
Cheers,
Daniel
Hello. I hawe porblem with based at websocket transport clietns. I use wss
and with chain sertificate.
When I do call with this sert signalling goes normally but sound starts
after fiev seconds of picking up. I debug RTP with tshark at my servers and
localize issue at the kamailio. Ussue dissapears when I use sertificate
without chain.
_______________________________________________
--
Daniel-Constantin Mierlahttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

[Daniel-Constantin Mierla]

Are you doing encryption/decryption of srtp with rtpengine? Or is just
forwarding?

Again, it can be just ice negotiation that can take long, if it is just
the initial audio start. If you get delays later in the call, then check
the network path for latency.

Cheers,
Daniel

Post by Yuriy Gorlichenko
yes. We using rtpengine last release (previous gave same result) with
rtpproxy-ng module
Hello,
are you using any rtp relay application on server? If yes, which one?
kamailio itself is not handling rtp packets, so no delay can be
introduced by it.
On the other hand, webrtc uses ice to negotiate rtp relaying, and
that can take several seconds.
Cheers,
Daniel

Post by Yuriy Gorlichenko
Hello. I hawe porblem with based at websocket transport clietns.
I use wss and with chain sertificate.
When I do call with this sert signalling goes normally but sound
starts after fiev seconds of picking up. I debug RTP with tshark
at my servers and localize issue at the kamailio. Ussue
dissapears when I use sertificate without chain.
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -http://www.linkedin.com/in/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users