asterisk users - Sep 2004 - Help with fax dial plan

I am getting pounded by junk faxes. I have noticed that all of them have no
callerid. Can I set up a dial plan to ignore a fax if no callerid is sent? I
am using RxFax (spandsp) on an x100p card. 

Thanks
John Hill

On 2004.09.28 14:18 John Hill wrote:
> I am getting pounded by junk faxes. I have noticed that all of them
> have no
> callerid. Can I set up a dial plan to ignore a fax if no callerid is
> sent? I
> am using RxFax (spandsp) on an x100p card.
I think that you'll find that blocking faxes with no caller id will 
produce false positives for you - you'll block some valid faxes.

I don't know if RxFax supports call rejection based on TSI information 
(HylaFAX supports this), but that could work when there is no caller id.

The caller will usually let the line ring for 30 seconds or more.  You 
may be able to free up your line more quickly by answering and then 
promptly disconnecting.

Lee.