[Freeswitch-users] Deliberately adding delay to all calls

Brian West brian at freeswitch.com
Thu Jan 25 16:13:08 UTC 2018


also you'll have to set rtp_jitter_buffer_during_bridge to true.

/b


On Thu, Jan 25, 2018 at 2:22 AM, Alexey Sibyakin <alex at freeswitch.com>
wrote:

> Then you should try to set JB for b-leg via export nolocal.
>
> On Thu, Jan 25, 2018 at 3:44 PM, Erik M. Devane - Comms Guy <
> emdevane at gmail.com> wrote:
>
>> Thank you for the reply. Here's what I tried:
>>
>> <action application="set" data="jitterbuffer_msec=3000:3200:20"/>
>>
>> Works for calls from SIP clients but not for PortAudio calls.
>>
>> Same with delay_echo - the CODEC is seen as RAW and so the jitterbuffer
>> doesn't seem to be engaged (read_frame->packet doesn't have anything to
>> work with so it skips the buffer).
>>
>> I have tried to have PortAudio > extension 1 > bridge to extension 2,
>> which produces better results, but (in my hands at least) it causes memory
>> leaks and is unwieldy.
>>
>>
>>
>>
>> On Wed, Jan 24, 2018 at 11:59 PM, Alexey Sibyakin <alex at freeswitch.com>
>> wrote:
>>
>>> JB should be fine. Any details of unsuccess?
>>> https://freeswitch.org/confluence/display/FREESWITCH/JitterBuffer
>>>
>>> On Thu, Jan 25, 2018 at 2:45 PM, Erik M. Devane - Comms Guy <
>>> emdevane at gmail.com> wrote:
>>>
>>>> I've been working on using FreeSWITCH as a bridge between different
>>>> devices, and I need to delay all calls by 2-3 seconds in order for the
>>>> external systems to keep up.
>>>>
>>>> This delay should happen at the start of a call, and all subsequent
>>>> audio should sound fine, just late.
>>>> I know that doing this sounds silly - I'm sorry about that.
>>>>
>>>> Here are my approaches:
>>>>
>>>> 1) Eavesdrop on a call send through delay_echo - this works for SIP
>>>> clients but I have to do an absolute_codec_string as it seems that CODEC
>>>> support is limited, and I'm often getting no delay at all with my PortAudio
>>>> clients.
>>>>
>>>> 2) Use lua to do a session freeswitch.msleep on answer - exactly what
>>>> Confluence tells me to avoid - if I sleep but don't consume audio, I think
>>>> I can get the desired result.
>>>>
>>>> 3) Mess with the jitterbuffer - I haven't had any success with this yet.
>>>>
>>>> 4) Increase the buffer in mod_PortAudio.
>>>>
>>>> Writing this out makes me sure that I'm missing something - a way of
>>>> getting delay_echo to work for all calls, or a way to pause session media
>>>> to get the desired effect.
>>>>
>>>> Can you please help?
>>>>
>>>> ____________________________________________________________
>>>> _____________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://confluence.freeswitch.org
>>>> http://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing list
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>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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>>>> switch-users
>>>> http://www.freeswitch.org
>>>>
>>>
>>>
>>>
>>> --
>>>
>>> Alex Sibyakin | Support Engineer
>>> FreeSWITCH Solutions | 17345 Civic Drive #2531 Brookfield, WI 53045
>>> <https://maps.google.com/?q=17345+Civic+Drive+%232531+Brookfield,+WI+53045&entry=gmail&source=g>
>>> Email: alex at freeswitch.com
>>> Website: https://www.FreeSWITCH.com <https://www.freeswitch.com/>
>>> Need commercial support? Contact sales at freeswitch.com for details.
>>>
>>> ____________________________________________________________
>>> _____________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://confluence.freeswitch.org
>>> http://www.cluecon.com
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>
>
>
> --
>
> Alex Sibyakin | Support Engineer
> FreeSWITCH Solutions | 17345 Civic Drive #2531 Brookfield, WI 53045
> <https://maps.google.com/?q=17345+Civic+Drive+%232531+Brookfield,+WI+53045&entry=gmail&source=g>
> Email: alex at freeswitch.com
> Website: https://www.FreeSWITCH.com <https://www.freeswitch.com/>
> Need commercial support? Contact sales at freeswitch.com for details.
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>



-- 

Brian West | Co-founder and Developer

Need Commercial support? email sales at freeswitch.com

FreeSWITCH Solutions | 17345 Civic Drive #2531 Brookfield, WI 53045
<https://maps.google.com/?q=17345+Civic+Drive+%232531+Brookfield,+WI+53045&entry=gmail&source=g>

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