[Freeswitch-dev] Why does Freeswitch send Bye to sipp(uac and uas) when doing performance test?

Brian West brian at freeswitch.org
Mon Mar 9 22:22:20 PDT 2009

This is normal depending on which side hung up the call and if the  
scenario file accounts for it... sipp is a tool that takes time to  
master and understand fully and isn't something I would consider  


On Mar 9, 2009, at 10:42 PM, congxin zhao wrote:

> Thanks Make's response.
> The test case is that, set up new calls from sipp uac with high call  
> rate(200 Call Attempts per Second). After the call has been set up  
> successfully,  sipp uac pauses about 1:40 minute and then sends bye  
> to sipp uas.
> When running the test case, after a little while, the sipp uas runs  
> normally, but the sipp uac shows the types of errors as the following,
> 2009-03-09    13:14:40:331    1236575680.331543: Discarding message  
> which can't be mapped to a known SIPp call:
> 2009-03-09    13:29:47:004    1236576587.004757: Aborting call on an  
> unexpected BYE for call: 673-21803 at
> It looks that when the new call rate is high, the freeswitch will  
> send some sipp uac unknown INVITE message and bye message.
> Should I forward this email to freeswitch user?
> -Congxin

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