is there an open source benchmarking tool for asterisk to calculate simultaneous max calls and the max number of extensions that can be added in a voip server and measure the hardware performance ? or how to build a benchmarking tool ?
You can use Sipp to benchmark your server, which is quite useful and need some practice. I don’t think that there is any tools for that, just people feedback.
Below sipp link:
Below a link for hardware recommendation: