[VoIP] New PhoneTrips Coin Control Recording

[Donald Froula]

There is a new PhoneTrips recording up that has
recordings of various coin control configurations:
prepay, dial tone first, and postpay. Unusual
variations and implementations on different switching
systems are illustrated.

Very interesting. It explains a few oddities I noticed
while experimenting back in the 70's.

http://www.wideweb.com/phonetrips/CoinControl.ram

Don