asterisk users - Apr 2005 - how can i connect a cost display on asterisk

Is it possible to connect a display that shows the costs of a call in
progress?

 

Can I also send the call cost to a grandstream display?

 

Greeting

 

Johannes

 

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Johannes,

I would be curious to know if there is a solution for this. Another solution is
that you buy a "call meter". Which is a small box that can be placed
in front
of phone phone and that can display costs.

FXS--> call meter --> analog phone

This call meter needs to be programmed with a table inside and a rate for each
destination.


Selon Han van Hulst <asterisk@unitedsecure.com.br>:
> Is it possible to connect a display that shows the costs of a call in
> progress?
>
>
>
> Can I also send the call cost to a grandstream display?
>
>
>
> Greeting
>
>
>
> Johannes
>
>
>
>

That is a fast solution. I did not know this.
But is it not possible to send messages to a SIP phone.

But thanks for the TIP of the call meter.

Johannes



-----Original Message-----
From: ht@phonitel.com [mailto:ht@phonitel.com] 
Sent: quarta-feira, 6 de abril de 2005 10:36
To: Asterisk Users Mailing List - Non-Commercial Discussion; Han van Hulst
Cc: asterisk-users@lists.digium.com
Subject: Re: [Asterisk-Users] how can i connect a cost display on asterisk

Johannes,

I would be curious to know if there is a solution for this. Another solution
is
that you buy a "call meter". Which is a small box that can be placed
in
front
of phone phone and that can display costs.

FXS--> call meter --> analog phone

This call meter needs to be programmed with a table inside and a rate for
each
destination.


Selon Han van Hulst <asterisk@unitedsecure.com.br>:
> Is it possible to connect a display that shows the costs of a call in
> progress?
>
>
>
> Can I also send the call cost to a grandstream display?
>
>
>
> Greeting
>
>
>
> Johannes
>
>
>
>

If it helps, then great !

This is what we do in Africa for some callshops that do not want to pay $$$ in
billing software licenses.


While talking, I wonder whether the field of "CAller ID" which is
displayed in
the IP Phone can be updated while conversation is ongoing, say every 10
seconds. In which case, may be the cost can be displayed in the content of
caller ID (since at this time, people are calling and not being called)?



Selon Han van Hulst <asterisk@unitedsecure.com.br>:
> That is a fast solution. I did not know this.
> But is it not possible to send messages to a SIP phone.
>
> But thanks for the TIP of the call meter.
>
> Johannes
>
>
>
> -----Original Message-----
> From: ht@phonitel.com [mailto:ht@phonitel.com]
> Sent: quarta-feira, 6 de abril de 2005 10:36
> To: Asterisk Users Mailing List - Non-Commercial Discussion; Han van Hulst
> Cc: asterisk-users@lists.digium.com
> Subject: Re: [Asterisk-Users] how can i connect a cost display on asterisk
>
> Johannes,
>
> I would be curious to know if there is a solution for this. Another
solution
> is
> that you buy a "call meter". Which is a small box that can be
placed in
> front
> of phone phone and that can display costs.
>
> FXS--> call meter --> analog phone
>
> This call meter needs to be programmed with a table inside and a rate for
> each
> destination.
>
>
> Selon Han van Hulst <asterisk@unitedsecure.com.br>:
>
> > Is it possible to connect a display that shows the costs of a call in
> > progress?
> >
> >
> >
> > Can I also send the call cost to a grandstream display?
> >
> >
> >
> > Greeting
> >
> >
> >
> > Johannes
> >
> >
> >
> >
>
>
>
>
>

i did something simlar by overwriting incoming caller id with other information.
  ----- Original Message ----- 
  From: Han van Hulst 
  To: asterisk-users@lists.digium.com 
  Sent: Wednesday, April 06, 2005 9:21 AM
  Subject: [Asterisk-Users] how can i connect a cost display on asterisk


  Is it possible to connect a display that shows the costs of a call in
progress?

   

  Can I also send the call cost to a grandstream display?

   

  Greeting

   

  Johannes

   



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In my country payphone solutions for Call Shops are implemented using FXS
SIP or H.323 gateways that implement the Polarity reversal feature that
reverse polarity as soon as the other party answers. I have done this in
several VoIP platforms but Asterisk.

Regular Payphones and Call Shop metering systems rely on polarity reversal
for proper call billing implemented in a local table.
Call Shop uses mainly a central billing unit (a PC or stand Alone) and
serveral metering boxes with display that connects to the central unit by
RS485 bus.
These boxes connects to the lines (FXS on the gateways or special payphone
lines provided by local carrier) and to normal phones.
a Call Shop can have form 2 to 16 call boxes. It it good bussiness above 8.
Billing systems are so simple electronically that they are manufactured
here. 

Regards,

Jorge A.



-----Mensaje original-----
De: abuse@cabal.org.uk [mailto:abuse@cabal.org.uk]
Enviado el: Mi?rcoles, 06 de Abril de 2005 11:01 a.m.
Para: asterisk-users@lists.digium.com
Asunto: Re: [Asterisk-Users] how can i connect a cost display on
asterisk


<ht@phonitel.com> wrote:
> Johannes,
> I would be curious to know if there is a solution for this. Another
> solution is that you buy a "call meter". Which is a small box
that
> can be placed in front of phone phone and that can display costs.
> FXS--> call meter --> analog phone
> This call meter needs to be programmed with a table inside and a
> rate for each destination.
It depends on the type of cost meter. One of BT's products is the
Meter Pulsing Facility which sends a short 50Hz longitudinal tone on
supervision, and just before a "unit" has been consumed. BT scrapped
unit charging in the mid-90s but this particular bit of legacy
remains. It's intended for payphones where you charge, say, 10p for a
unit and want to know when the 10p has been consumed.

That's why you can sometimes hear a buzz on a BT payphone a few
seconds before the credit drops, because the longitudunal pulse
sometimes breaks through into the audio path, even though shouldn't. I
suspect this is because they payphone isn't properly earthed.

A cost meter (or paypgone) that determines cost without exchange
assistance will suffer from inaccurate pricing information and an
inability to determine the start of supervision. Still, given that BT
charge a hefty wedge for the MPF, some people just stick a COCOT on a
standard exchange line and hope it's good enough that they don't get
ripped off.

-- 
Common sense is the collection of prejudices acquired by age 18.
							- Albert Einstein
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> Is it possible to connect a display that shows the costs of a call in
> progress? 
We are doing a 100% asterisk based software/hardware solution for
callshops. The hardware part consists of little boxes with an LCD that
displays information on the call, including number/name of dialed
number, duration, cost, etc, all in real time.

The boxes are connected to a 'master box' that at the same time is
connected through the serial port to the asterisk server. It does not
use polarity reversals or tones from the phone company, but just
asterisk status, so it can work in a pure voip environment, without
regular pots lines.

The operator has a console where he can view the status of each box
(using my Flash Operator Panel), including the cost for the call when
it ends, and the latest CDRs for every phone booth. It can
enable/disable phone booths, manage rates, etc.

The product is not yet finished, but its progressing nicely. If you
are interested in see how does it looks like, drop me a note off list.

Regards,

-- 
Nicol?s Gudi?o
Buenos Aires - Argentina