I created call file from pbx(A) and send it to pbx(B) to callout. The problem is when I send 50 call files at the same time, everything is ok.
But, try it with 200 call files at the same time. pbx(B) received only ~120-150 calls.
Please explain the picture. It appears to show FreePBX trying to start seven calls, but the external system only starting to accept six of them, It doesn’t show 120+ calls.
What happens to the call files of the calls that weren’t accepted.
How many calls does the service provider guarantee to handle in a fast burst? I don’t think anyone would design a service for such usage; I 'd expect them to design for a maximum number of normal duration calls, in progress, with start times random.