The first line requires a priority of 1, not an ‘n’, i.e.:
[macro-dialout-trunk-predial-hook]
exten => s,1,SIPAddHeader(Diversion:>sip:+PHONENUMBER@TRUNKPROVIDER>;privacy=off;reason=unconditional)
The first line requires a priority of 1, not an ‘n’, i.e.:
[macro-dialout-trunk-predial-hook]
exten => s,1,SIPAddHeader(Diversion:>sip:+PHONENUMBER@TRUNKPROVIDER>;privacy=off;reason=unconditional)