[asterisk-ss7] please give me a solution for this

[Anton]

Not sure about legality, but playing "network error" without 
charging user is perfectly logical. WHY should user pay for 
a few seconds of NO-SERVICE answer? This functionality does 
exist in PRI and SS7 - look at the Playback() command. Also 
you may alter the ringing tone (CPT) - make it music :)

On 9 October 2006 16:03, Matthew Crocker wrote:
> > On 10/9/06, M Jamshed <md.jamshed at gmail.com> wrote:
> > Dear,
> >
> > I' m having a big problem now. please sort it out
> > now... The matter is that..  if all our services are
> > down then i need to play a voice prompt which should
> > not be charged for the subscriber.. is there any
> > solution for this,,, please tell me out
> >
> > sure, use playback without answering the call
>
> I'm pretty sure that is illegal here in the states.  You
> cannot send any information down the line with out first
> providing answer supervision.  It probably also won't
> work because in an SS7 network (like the PSTN) the bearer
> channel isn't built until the receiving side answers. 
> So,  without an answer your playback doesn't go anywhere.
>   You should however be able to send the correct error
> message back to the caller via PRI signaling.
>
> -Matt
>
> --
> Matthew S. Crocker
> Vice President
> Crocker Communications, Inc.
> Internet Division
> PO BOX 710
> Greenfield, MA 01302-0710
> http://www.crocker.com
>
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