[OpenSIPS-Users] call_center module issues

[Bogdan-Andrei Iancu]

Hi Mikhail,

1) I'm aware of the issue with the silence during the agent ringing - to 
be honest, we did some scripting workaround to use rtpproxy to inject a 
ringback tone to caller while we ring the agent :D.
But the proposed solution is definitely better, still it needs to be 
evaluated if possible or not from the coding perspective (more or less, 
it depends on how the b2b works in OpenSIPS)
Could you please take this report/issue/topic and create a new 
issue/ticket on the github tracker, so we can have it on the roadmap ?

2) I suppose the fault is related to frame 35-37 in callcenter.pcap, 
right ? Also please open a ticket here and attach the pcap + opensips 
logs in level 4 (dbg).

Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS Summit 2019
   https://www.opensips.org/events/Summit-2019Amsterdam/

On 05/23/2019 08:25 PM, Mikhail wrote:
> Hi Bogdan-Andrei,
>
> 1)
>
> Right. I'll try to explain more detailed what I mean:
>
> case 1 - as I see how opensips working
>
> Caller calls and Agent is not available
> caller is listening intro
> caller is listening music
> Agent become available
> Music stops, caller listening silence    - Agent ringing
> Agent don't answer within within defined period, for example 20 
> seconds, and Caller is listening silence 20 seconds!
> Call returned to queue
> Caller starts to listening music from beginning, because opensips 
> makes new call to ivr server
> Agent become available
> Music stops, caller is listening silence    - Agent ringing
> in a 10 seconds Agent answers, so 10 seconds caller listen silence again.
>
>
> case 2 - as I know how it should be
>
> Caller calls and Agent is not available
> caller is listening intro
> caller is listening music
> Agent become available
> Music don't stops, caller continue listening music without 
> interrupt    - Agent ringing
> Agent don't answer within within defined period, for example 20 
> seconds, but Caller do not know about it, he sill listening music 
> without interrupt.
> Call returned to queue, caller continue listening music without interrupt.
> Agent become available
> Music don't stops, caller continue listening music without 
> interrupt    - Agent ringing
> in a 10 seconds Agent answers, at this point caller stop listening 
> music and start talking to agent.
>
>
> 2)
>
> I made 2 calls for test:
> 1-st -  direct call from caller to agent. Hold by caller and agent 
> works good.
> 2-nd - call from caller to number 3001 routed to ivr by 
> cc_handle_call() command
> call routed to intro 0081 and then to agent. Hold did not work.
> I found that it seems that agent’s xLite did no receive some sip reply 
> and after 30 seconds after answer xLite sends bye by itself.
> Also there are errors in opensips.log
>
> sip log captured with sngrep I uploaded to my server:
>
> video2dv.com/download/opensips/direct.pcap
> video2dv.com/download/opensips/direct.txt
> video2dv.com/download/opensips/callcenter.pcap
> video2dv.com/download/opensips/callcenter.txt
> video2dv.com/download/opensips/callcenter.log
>
> Regards,
> Laba Mikhail
>
> 22.05.2019 10:09, Bogdan-Andrei Iancu wrote:
>> Hi Anton,
>>
>> In regards to your experience with the call_center module:
>>
>> 1) You mean, while the call is ringing on the agent side, the caller 
>> gets dead-air, right ?
>>
>> 2) It should be working, do you have a pcap on that ?
>>
>> Regards,
>> Bogdan-Andrei Iancu
>>
>> OpenSIPS Founder and Developer
>>    https://www.opensips-solutions.com
>> OpenSIPS Summit 2019
>>    https://www.opensips.org/events/Summit-2019Amsterdam/
>> On 04/28/2019 02:34 PM, Mikhail wrote:
>>>
>>> Hi Антон,
>>>
>>> in my tests I have  working greeting and queue and I sill have 
>>> issues I described before:
>>>
>>> - when Invite is going to agent, caller hear silence, because 
>>> opensips stops call to medial server.
>>>
>>> - can't place on Hold either agent or caller, opensips sends "400 
>>> Not Acceptable".
>>>
>>> I guess this is a feature/bugs in call_center module.
>>>
>>> My goal is to manage call_center with more then 1000 agents and 
>>> migrate from our current platform, but this troubles stops moving.
>>>
>>> It would be very cool if the developers or those who use the 
>>> call_center module have commented on these problems.
>>>
>>>
>>> Laba Mikhail
>>>
>>>
>>> 25.04.2019 16:12, Антон Ершов пишет:
>>>> hi, did you manage to launch the call center module?
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opensips.org
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>>>
>>>
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>>

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