On Feb 26, 2016, at 10:36 AM, Emrah <lists@kavun.ch> wrote:

Thanks for this. 

This isn’t just a yealink thing. I’ve encountered sporadic issues with soft phones and other desk phones as well.

I didn’t use the PCap capture feature because I had assumed it would give me a bunch of TLS packets. I’ll test that and revert back.

How can we explain that I have more calls failing if I register multiple accounts?

Emrah

On Feb 26, 2016, at 6:37 AM, Mario G <mario_fs@mgtech.com> wrote:

You may want to run a pcap trace on the Yealink. It’s under settings->Configuration. Start/test/export.

On Feb 25, 2016, at 3:35 PM, Brian West <brian@freeswitch.org> wrote:

Sounds like there may be a bug in the yealink if packet size is of issue on TCP/TLS connections.

On Thu, Feb 25, 2016 at 5:13 PM, Emrah <lists@kavun.ch> wrote:

Hello list,

I thought I had solved this issue by reducing my codec list  to a minimum, but it still persists, unfortunately. This was to reduce the TLS packet size.

Anytime I enable SRTP on my phones, outgoing calls will randomly fail. The problem goes away when I disable SRTP. I only work over TLS.

Incoming calls work reliably with or without SRTP.

How do you suggest debugging this?

I tried setting up a fresh instance of FS but the issue persists.

Now. It should be noted that calls fail sensibly more often when I have more than one account registered on the same server with the same device.

Any suggestion is welcome. Have you experienced this? 

I’m running FreeSWITCH Version 1.6.5 on Debian. My phone in this case is a Yealink SIP-T46G running firmware 28.80.0.95.

E

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