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- Path: sparky!uunet!pipex!demon!pizzabox.demon.co.uk!gtoal
- Newsgroups: uk.telecom
- From: gtoal@pizzabox.demon.co.uk (Graham Toal)
- Subject: Re: Itemised Bills
- Date: Mon, 25 Jan 1993 19:22:29 +0000
- Message-ID: <9301251922.AA19264@pizzabox.demon.co.uk>
- Sender: usenet@demon.co.uk
- Lines: 21
-
- :I suspect that one problem is the size of the disk that comes with
- :exchanges such as System X. All the billing data is dumped to that,
- :and then downloaded to a remote site periodically (every hour, I
- :think) over X.25. BT insist, however, that they musn't lose any
- :billing data, even if their comms links go down for a long period (>
- :1day?) - this effectively limits the amount of data that can
- :physically be stored, and hence the 10 unit restriction.
-
- This is interesting! How weird to think that BT could lose their
- comms to the central record office whilst keeping the exchange
- running - you'd think they'd have several backup routes. If the
- phones are still up enough for there to be anything worth billing,
- the link should be too.
-
- You seem to actually know something about this. Can you then say from
- your own personal knowledge that BT really don't record the details of
- calls of < 10 units?
-
- G
- btw, how big *are* the disks, and what's the daily traffic through
- an exchange, if you know?
-