[Asterisk-Users] SOLVED: Help wanted getting Busy / Congested working properly

[Dan A]

> Hi all,
> I have Asterisk sat between the PSTN and a PBX.  Input and output is E1 PRI
>
> When people from the PSTN call a line on the PBX which is engaged, the
> line just sits there silently until they hang up.

It is there in the Wiki, but not where I was looking.
A working way to handle busy/congestion signals in this situation is:
exten => _X.,1,Dial(${PSTN}/${EXTEN})
exten => _X.,2,SetVar(PRI_CAUSE=${HANGUPCAUSE})
exten => _X.,3,Hangup

Dan