From: Mani, Chandrashekar (Chandrashekar.Mani@astrazeneca.com)
Date: Wed Jul 24 2002 - 11:46:10 EDT
Hi!
Another response from Leon.
The conclusion is good for sysadmin, however Andy's guess for
what switch provisioning does is wrong ;-)
What it does is the communication with the switch about telephone
numbers. One simple example - you're prepaid customer and you've
5$ left on your account. You place a long distance call and talk, now
sw prov apps would tell the switch to cut off the call once you out of
money.
Leon
> -----Original Message-----
> From: Mani, Chandrashekar
> Sent: Wednesday, July 24, 2002 8:52 AM
> To: 'hpux-admin@dutchworks.nl'
> Subject: [HPADM] switch provisioning applications - Summary
>
> Hi!
>
> I got only one response for my question. Thanks to Andy Cranston
> for his response.
>
> This is a general question. What is switch provisioning
> applications..? As a HP-UX administrator what are the things one need to
> know.
>
> Response:
> This sounds like an application a telecommunications company would use for
> billing purposes. Whenever a phone call is made (mobile or other) the
> call
> gets routed through one or more switches. Think of these switches as
> complicated routers that route voice calls instead of data.
>
> The switches record when calls start and finish. This information is
> stored
> in a call data record (CDR) inside the switch. Because the switch has
> limited storage capacity the CDR's in the switches are regularly
> transferred
> to computer systems and then cleared from the switch. The computer
> systems
> then process the CDR's and after a long sequence of software processing
> eventually print out a bill to send to each customer who made calls.
>
> That's the simple way of putting it - in reality billing
> telecommunications
> customers gets very complex.
>
> Switch provisioning applications are (and I'm guessing now) probably the
> suites of software that extract the CDR data from the switch, manage
> general
> switch operations and do some initial processing of the CDR records (e.g.
> remove CDR's which are incomplete for some reason).
>
> As the HP-UX admin for a system running a switch provisioning application
> I
> would just be aware of what the application does from a high level and
> then
> ask questions about how much storage space will be required for the CDR's
> that the switch will produce, how long they need to be held on your HP-UX
> systems and how does the CDR data get archived? The archiving question is
> an important one because most countries, by law, require CDR data to be
> kept
> for a period of X years (7 years in the UK I think - I'm guessing again).
> This is so the police, CIA, MI5 and your friendly facist dictator can
> check
> up on who Joe Average has been calling on their mobile phone.
>
> So there you go - telecoms in a nutshell :-)
>
> Hope this helps.
>
> Regards,
>
> Andy Cranston.
>
>
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