[Freeswitch-users] Session recording performance

Thu Sep 21 15:25:38 UTC 2017

but the other box is doing the same TX job, and it's doing fine.
I'm trying different timers now.

On Thu, Sep 21, 2017 at 5:02 PM, Brandon Armstead <brandon at cryy.com> wrote:
> Any leads maybe under ethtool -S [interface] , possible some kind of
> checksum / network "interference" , possibly the tx side is doing more
> work?
>
> https://www.kernel.org/doc/Documentation/networking/checksum-offloads.txt
>
> On Thu, Sep 21, 2017 at 7:49 AM, Stanislav Sinyagin <ssinyagin at gmail.com> wrote:
>> I actually mentioned it in the thread. Yes, after switching the roles
>> of the boxes, the problem switches too. It's only the call origination
>> box that is producing the jitter on outbound RTP. I also verified it
>> with packet capture on both sides. The RTP leaves the box with jitter
>> already.
>>
>> I'm still analyzing it, trying to find the reason for the jitter.
>>
>>
>>
>> On Thu, Sep 21, 2017 at 4:08 PM, Mundkowsky, Robert <rmundkowsky at ets.org> wrote:
>>> Just curious, have you tried switching the boxes and seeing if you get same situation?
>>>
>>> Robert
>>>
>>> -----Original Message-----
>>> From: FreeSWITCH-users [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Stanislav Sinyagin
>>> Sent: Thursday, September 21, 2017 8:31 AM
>>> To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>>> Subject: Re: [Freeswitch-users] Session recording performance
>>>
>>> but the interesting thing is, that it's the device that originates the SIP call is producing a significantly higher jitter than the one receiving the call.
>>>
>>> The originating command looks like this here, with a SIP address as destination, and a number in local XML dialplan as transfer
>>> application:
>>> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Ffreeswitch.org%2Fconfluence%2Fdisplay%2FFREESWITCH%2FOriginate%2BExample&data=02%7C01%7Crmundkowsky%40ets.org%7Ca687846ba37f40ba852608d500ed0775%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C636415940392006303&sdata=M5OEPvRrB9JkM5fodeKscJakpsvZn42LhZs2jQle9Ro%3D&reserved=0
>>>
>>>
>>>
>>> On Thu, Sep 21, 2017 at 7:46 AM, Stanislav Sinyagin <ssinyagin at gmail.com> wrote:
>>>> with jitterbuffer, it now works as expected. So, the sending party was
>>>> generating extra jitter.
>>>>
>>>> I am playing the same audio file in both directions, and then compare
>>>> the recorded audio with the original by Sevana AQuA software. This
>>>> allows me to detect packet loss in a heterogeneous environment where
>>>> the voice goes through RTP proxies and TDM.
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Sep 21, 2017 at 3:43 AM, jungle Boogie <jungleboogie0 at gmail.com> wrote:
>>>>> What occurs if you send identical audio for the same duration? IOW,
>>>>> play the sound file for each call.
>>>>>
>>>>>
>>>>> _____________________________________________________________________
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>>>>> ba37f40ba852608d500ed0775%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%
>>>>> 7C636415940392006303&sdata=nGh9In%2FvTyg37f7nJph6TXJFaz2nMMjZ0NXzIZr3
>>>>> hWg%3D&reserved=0
>>>>>
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>>>>> 852608d500ed0775%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C6364159
>>>>> 40392006303&sdata=wFbEKkGrG49JjArYiD7D1mo6icJFqaxinnS3%2F5xq6hs%3D&re
>>>>> served=0
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>>>>> uence.freeswitch.org&data=02%7C01%7Crmundkowsky%40ets.org%7Ca687846ba
>>>>> 37f40ba852608d500ed0775%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C
>>>>> 636415940392006303&sdata=ehMZuD9vMm325yuExibRBY6G9ysSDmvqoBQaXcHXFww%
>>>>> 3D&reserved=0
>>>>> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.c
>>>>> luecon.com&data=02%7C01%7Crmundkowsky%40ets.org%7Ca687846ba37f40ba852
>>>>> 608d500ed0775%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C6364159403
>>>>> 92006303&sdata=J2p7ztQidG%2FLf4c6prqao3hhOnrmHHl2pxlwod3LNKM%3D&reser
>>>>> ved=0
>>>>>
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>>>>> 852608d500ed0775%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C6364159
>>>>> 40392006303&sdata=wFbEKkGrG49JjArYiD7D1mo6icJFqaxinnS3%2F5xq6hs%3D&re
>>>>> served=0
>>>
>>> _________________________________________________________________________
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>>>
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>>>
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>>
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>>
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>
>
>
> --
> Sincerely,
> Brandon Armstead
> CTO / CRYY.com
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
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>
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