[Asterisk-Users] OT: VoIP over bonded link

[Greg Oliver]

> The above concern have been a major issue with telephone equipment (eg, central 
> offices) and the telco's spend a significant amount of money burying very long 
> rods in the ground and interconnectng them with the CO hardware using cables 
> that are larger then 1/4" in diameter (don't remember the guage anymore).
> Every row of racks include the heavy ground cabling, and rack paint (etc)
> is often times scrapped off between racks to ensure a solid ground.
> They use special test equipment to actually measure the implementation.

Yes - the last LEC I worked for grounded every single relay rack to the
DC power plant ground with #6 cable.  Might be overkill, but the cost of
the cable versus a SONET shelf or DLC is definitely worth it.