[Freeswitch-users] jitter buffer during bridge call

Brian West brian at freeswitch.org
Thu Feb 23 22:41:22 MSK 2017


FYI sip_secure_media became rtp_secure_media a while back.

On Thu, Feb 23, 2017 at 4:14 AM, Caragea Silviu <silviu.cpp at gmail.com>
wrote:

> Hi Michael,
>
> It's enough the logs FS is producing with :
>
> sofia loglevel all 9
> sofia global siptrace on
> console loglevel 7
>
> ??
>
>
>
>
>
> On Thu, Feb 23, 2017 at 12:06 AM, Michael Jerris <mike at jerris.com> wrote:
>
>> 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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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>
>
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