extentions_additional.conf 

[callme]
exten => 210,1,Wait(3)
exten => 210,2,TxFax(${FAXFILE}|caller)


saved as callralph.call in /var/spool/asterisk/outgoing 
and replaced the xx with the 7 digit fax number

Channel: Zap/1/604xxxxxxx
MaxRetries: 2
RetryTime: 60
WaitTime: 30
Context: callme
Extension: 210
SetVar: tmp=/usr/share/pixmaps/redhat/redhat.tif 
Priority: 2 

I dont think the person who created the SetVar to point to the tif file was correct but thats what I have here.