I mean, that's awesome and all, but if the phone system in USA is anything like the UK phone system, then standard volage is +50volts a ringer is 100V, so you wouldn't want to be touching it when a call wa being established!

A good reference on the USA standards, including some of the cludges, is at:

https://www.sandman.com/knowledgebase/ring-voltage-tech-bulletin

48vac 20hz, doubled when ringing, dropping to about 9vac 20hz at connect.

Article explains why EU/UK standard phones often won't ring on a US standard li

Doesn't get much into the harmonization where networks touch though.

--- Steve K9ZW via SPOT BBS

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k9zw wrote to paulie420 <=-

https://www.sandman.com/knowledgebase/ring-voltage-tech-bulletin

48vac 20hz, doubled when ringing, dropping to about 9vac 20hz at
connect.

MIKE SANDMAN!

There's a name from my past. I was a telecom manager in a former life, his catalog was my version of thinkgeek.com.


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