[Asterisk-Users] spandsp question

[John Hill]

I would like to block incoming faxes that do not have a callerid. I would
like to accept ones that do.

If I add an answer and fax later in the plan will it then receive that one
or fall through to phones?

[inbound-analog]
exten => s,1,Zapateller(answer|nocallerid)
exten => fax,1,Macro(noservice) 
exten => s,2,PrivacyManager
exten => s,3,LookupBlacklist
exten => s,4,Answer
exten => fax,1,xxxxxxxxxxxxx
exten => Dial(xxxxxxxxxx

Thanks
John Hill