People claiming that the voltage is an issue have little idea about modern power conversion. It’s doesn’t take much juice to drive the ringer - less than a watt

People claiming that the voltage is an issue have little idea about modern power conversion. It’s doesn’t take much juice to drive the ringer - less than a watt. Any basic ATA will easily drive a ringer.. ever seen a MagicJack? - it’s a complete USB telephone adapter and barely larger than a thumb drive. They aren’t greatly hackable - but something like a Grandstream HT801 can be opened and the board put inside and you basically have an entire telephone interface right there. They even support pulse dialing.