[speeddial]
exten => 300,1,dial(SIP/011XXXXXX@sip.broadvoice.com,30) 
exten => 301,1,dial(SIP/011XXXXXX@sip.broadvoice.com,30) 

exten => 30X,2,congestion() ; No answer, nothing
exten => 30X,102,busy() ; Busy