[Asterisk-Users] Re: Digium Hardware Reliability

[John Novack]

M.Hockings wrote:

> One weakness is the incoming PSTN line, what is the best way to 
> protect that beyond the device at the premises entry ?
>
The device at the entry, assuming it was even installed correctly, is 
there to protect the PSTN Central Office, NOT your equipment.
There are many sites on the net that discuss protection, and lots  
protectors available.
No easy answer, given no one knows where in the world you are, and what 
sort of hazards there might be.
In New York City, or Washington D.C. with underground cables, protection 
can be somewhat less than in Russell Kansas, as one example.

All of that said, it sounds as if your problems had a lot more to do 
with linux and Asterisk configuration issues than ingress of foreign 
potentials. Components damaged by power outages, crossed power and PSTN 
lines and such seldom heal themselves
Start with a good UPS, good grounding and some good protection on the 
PSTN line.

John Novack

>