We have problems with outgoing calls: I can do an outgoing call, but when I try to make another call, it's not possible, and the log says "Outgoing call failed". After some time, I can again make a call. In the meantime, no difference is visible in the log.
All suggestions I found here and in the Yeastar help (https://support.yeastar.com/hc/en-us/articles/360011004693-Common-Causes-for-SIP-Outbound-Call-Failures) didn't help to solve the problem.
What can I do to solve this?