I set up a simple freepbx setup, just 2 pjsip extensions, 1 pjsip trunk and a default in and out route.
i get the message ‘all the circuits are busy now’ everytime i try to call to pstn.
Public IP address and Local network are described in Asterisk SIP Settings page.
[2018-03-14 17:18:15] VERBOSE[5378][C-00000004] pbx.c: Executing [s@macro-dialout-trunk:31] Dial("PJSIP/103-00000008", "PJSIP/3485754094 @voipvoice_test,300,T") in new stack
[2018-03-14 17:18:15] VERBOSE[5378][C-00000004] app_dial.c: Called PJSIP/3485754094 @voipvoice_test
[2018-03-14 17:18:15] VERBOSE[5378][C-00000004] app_dial.c: Everyone is busy/congested at this time (1:0/0/1)
Your provider is rejecting the dial attempt, possibly the number is not formatted correctly. Whatever the reason, they should be able to tell you why.