[Asterisk-Users] How to make/recieve call using asterisk when thereis a power failure?

[Julien Goodwin]

On Thu, Nov 25, 2004 at 09:59:58PM +1100, Bob Purdon arranged a set of bits into the following:
> 
> >An E1 termination can require local power. In that case you will have to 
> >provide backup power to it. Some get their power from the central office, 
> >in which case this is not a problem.
> 
> In our neck of the woods (Australia) the dominant carrier typically 
> deploys one of two solutions:
> 
> (a) E1/PRI over copper - I haven't seen this for a long while, but I 
> believe they're line powered;
The one we got installed today (yes, really) at work wasn't line
powered, another bloody wall-wart to go with the others. However that
was shipped as an OnRamp 30 (ie a euro PRI), whereas the E1 data link is
also locally powered, but with power coming from the curb.

We're just outside the Melbourne CBD (next to melb-uni if people care)
and now have 2 E1's, 1 data, 1 ISDN voice, and about another 1/2 dozen
analog trunks. (Plus the two ADSL links)

> (b) E1/PRI over fibre - see these all the time, and the transmission 
> rack they install at the customer site includes batteries and a 
> rectifier which typically provides service for a couple of days in a 
> typical installation.
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