[asterisk-users] Billing pulses

[David Boyd]

On Wed, 2007-02-07 at 14:49 -0800, Yuan LIU wrote:
> >From: David Boyd <dboyd at ignitetrx.com>
> >Date: Wed, 07 Feb 2007 15:24:04 -0500
> >
> >On Wed, 2007-02-07 at 10:14 -0800, Yuan LIU wrote:
> > > From:  Jorge Mendoza <mendoza at tcc.com.pe>
> > > >Funny that a digital line have a analogue pulse.
> > > >Normally the billing pulse is used on payphones. IMO you only need
> > > >the answer supervision to trigger your own billing system.
> > > >
> > > >Jorge Mendoza
> > > >
> > > >Stefano Corsi wrote:
> > > >>Hello,
> > > >>
> > > >>I've discovered that in Italy ISDN lines can be programmed to
> > > >>generate a "billing pulse" every n seconds (it dipends from the
> > > >>pricebook). The pulse has these figures:
> > >
> > >
> > > Whatever reason, if telco provides them, there's a good chance
> > > that some ISDN interface cards can use them.  (Just googled to confirm
> > > that some non-Digium cards can be used in Asterisk.)  This doesn't
> > > mean that Asterisk can use them.  So you may need significant
> > > programming to get going.
> > >
> > > If they are truly analogue pulses, it could be cheaper to produce a
> > > little dedicated circuit to feed an AGI or something.
> > >
> > > Yuan Liu
> > > ...
> >How would you be able to determine which call was being billed for if
> >the pulse is sent down the wire on an ISDN circuit with multiple
> >channels in use?
> >
> >db
> 
> Bill them both.  We are talking about mere BRI's, right:-)  Good catch, 
> David.  As others noted, billing pulse really applies to analogue lines 
> only, and ISDN providers should always send status.
> 
> Yuan Liu
> 
> 
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Thanks, Yuan


But my confusion came from the original post stating the use of ISDN
circuits for this  implementation.  Id ISDN is in fact the circuit of
choice for this app, I agree why wouldn't he simply use the cause codes
for billing purposes.  We have a lot of experience in telecommunications
billing, and have always found cause codes to be more than sufficient
even for weird tiers, and bizarre rounding functions.

db