FreePBX AllowList Caller Module -- to block all but a list of allowed callers

[dicko]

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 dialplan hooks in FreePBX 14. What is a dialplan hook? A dialplan hook refers to several pre-defined FreePBX contexts that exist solely for users to add their own Asterisk Macros to be run at specific locations in the call flow. They all …

Particularly "How do I do X on every outbound call?"

I would start with

[macro-dialout-trunk-predial-hook]
exten => s,1,NoOp(Entering user defined context macro-dialout-trunk-predial-hook in extensions_custom.conf)
exten => s,n,DumpChan()
exten => s,n,Set(DB(whitelist/${DIAL_NUMBER:-10}/date)=${EPOCH}) 
exten => s,n,Set(DB(whitelist/${DIAL_NUMBER:-10}/destination)=We_called

; additional lines here 
exten => s,n,MacroExit

which will show all the channel variables you can read (and sometimes re-write ) in your agi script.