hello again
unfortunately the problem is persist while the channel is SIP/xxx
the agent received a external call (via Grandstream FXO Gateway) and tried to blind transfer it to external call too (Grandstream FXO Gateway)
and he got the call returned immediately
i have captured FOP2 Log
i have uploaded the log to external website (due characters limitation) https://justpaste.it/7pybb
please check it
thank you for your support
