No outgoing calls on FreePBX 17 with A1 (Austria)

[Stewart1 (Stewart)]

According to the article and the correction by @BlazeStudios , you should set
Asterisk Trunk Dial Options to b(custom-sip-headers^s^1)
You can check the Asterisk log for the custom dialplan running and the pjsip logger output to see if the header was correctly set.

For an alternate approach, see

Hooking for fun and income

Edit by Lorne 2025-02-03 The dialplan shared in this thread will not work with FreePBX version 17 or newer. In all cases, you want to replace all instances of exten => s,n,MacroExit with exten => s,n,Return Hooking for Fun and Income Despite the frequency with which it arises here in the forum, there is not yet a good resource for learning to use dialplan hooks in FreePBX. This will probably end up in the wiki at some point, but until that happens, here are the broad strokes for leveraging…

If you still have trouble, paste a new log.