I changed the open file limit from 1024 to 1048576 and checked that.
No changes happened by that.
I think its a problem in esxi load support, can it be the problem?

On Mon, Jan 16, 2023 at 9:10 PM mohsen khashei <mkhashei@gmail.com> wrote:
It's probably the matter of Number of Open Files Limit in Linux you can check it by :
ulimit -Hn 
And
ulimit -Sn
And if the number are low you can increase it by:

sysctl -w fs.file-max=500000

And test it again.

On Mon, Jan 16, 2023, 8:23 PM Mohammad Reza Keshavarzianpoor <keshavarzianpoorm@gmail.com> wrote:
Hi,
cpu and ram load on both servers are not high.
how can I know about your questions answer?( What does tcpdump say? What do the interface loss stats say? )

Thanks for your help

On Mon, Jan 16, 2023 at 6:48 PM Nathan Stratton <nathan@vocinity.com> wrote:
Most likely it's your hardware or network, I run well over 1k calls with StarTrinity with no loss. Whats the load on the boxes? What does tcpdump say? What do the interface loss stats say?

><>
Nathan Stratton
Founder, CTO
Vocinity, Inc. 




On Mon, Jan 16, 2023 at 9:23 AM Mohammad Reza Keshavarzianpoor <keshavarzianpoorm@gmail.com> wrote:
Hi,
I've installed last version of kamailio over ubuntu. I need to broadcast machine calls to destinations. my concurrent call should be around 300(my pstn channels), so I start calls with cps around 20, because my calls contains a less than 30 second and if destination answer the call it will hanged up in less than or equal to 30 seconds.
My problem is: to test my kamailio config, I'm using startrinity sip tester over an win server 2019 on local network. and it shows about 20% lost package on rtp and a jitter about 500ms. what should I do? my config is based on rtp media server module. Is there a complete working sample config for kamailio with rtp media server module?
I tried rtpproxy and rtp engine in past and the same problem happened.
Thanks for any help you can provide
Best regards
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