[asterisk-ss7] Receiving charging information for deflected(redirected) calls

Mehdi Shirazi mahdi_shirazi at yahoo.com
Fri Apr 20 09:48:17 CDT 2012

according to voip wiki for call redirection :
 Call RedirectionThere is a way to redirect your call back to the calling switch instead of keeping the media in your path.
Here is a sample:

exten => _X.,1,Set(_SS7_LSPI_IDENT=ON)
exten => _X.,n,Set(_SS7_RLT_ON=YES)
;exten => _X.,n,Answer()
exten => _X.,n,Playback(demo-congrats)

<Do your database lookup here and than redirect the call
back to the ss7 switch based on your lookup results
and drop out of the media path>

exten => _X.,n,Dial(DAHDI/r2/8005551212,30)
exten => _X.,n,Hangup()

My question: Is there any implemented method for Asterisk knows the charging information of deflected call? I think this relate CRG message for SS7. I know Asterisk supports Advice of charge for PRI.

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