Without a debug log with sip trace, no… could be different ptimes on each leg?

On Feb 22, 2017, at 4:36 PM, Caragea Silviu <silviu.cpp@gmail.com> wrote:

But do you have any idea what can breaks the timestamps ? Because this takes place with both ISAC and ILBC

Any idea in what direction I can debug ?

Silviu

On Wed, Feb 22, 2017 at 11:22 PM, Michael Jerris <mike@jerris.com> wrote:

based on the numbers you are seeing, it does not sound like jitter is actually your issue.  I’d look closer at the numbers, my guess is you see one weird timestamp in there and it has the jitter calculation messed up.

On Feb 22, 2017, at 3:20 PM, Caragea Silviu <silviu.cpp@gmail.com> wrote:

No, I think they have something proprietary. But anyway this problem can be with any solution that's not able to handle jitter properly.

And what's killing me is why in FS I have this behaviour.. I mean after transcoding the stream has jitter... I mean I send a stream with almost no jitter and after transcoding results a stream with jitter...

Silviu

On Wed, Feb 22, 2017 at 10:12 PM, Michael Jerris <mike@jerris.com> wrote:

any info in their sdp or sip packets to say what kind of equipment they are using?

On Feb 22, 2017, at 3:00 PM, Caragea Silviu <silviu.cpp@gmail.com> wrote:

Hello michael,

http://www.digitalk.com/ is the one generating problems where I can replicate problem all the time.

Silviu

On Wed, Feb 22, 2017 at 9:34 PM, Michael Jerris <mike@jerris.com> wrote:

what type of switch are you talking to when you have problems?

On Feb 22, 2017, at 2:16 PM, Caragea Silviu <silviu.cpp@gmail.com> wrote:

Hello Russel,

Not all, depends on what technologies they have behind. For example I have some calls sent via two different gateways with almost same jitter and using route A I have breaks in voice using the second one it's fine. If I send via route A without jitter quality is clear. Once you put some jitter sucks. We started to have this problem once we upgraded from FS 1.2 to 1.6 and only noticed difference is this jitter.

Silviu

On Wed, Feb 22, 2017 at 8:48 PM, Russell Treleaven <rtreleaven@bunnykick.ca> wrote:

I want a jitterbuffer in the bridge because some PSTN gateways sucks in case they receive the calls with jitter.

How and why do they suck when they receive calls with jitter?

Are we talking about all PSTN gateways or just some of them?

 

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