I now use Virgin but from 1998-2004 I used SPCS I had tested from a payphone to one of my SPCS phones w/o VM and with no answer, coin was returned.
Wife has VM on Virgin I do not. I should do same test with Virgin.
Supervison may depend on cell carrier. Your calling card may bill based on time instead of supervison.
Altho I have included USA LDX on Virgin, for international on Virgin I use OneSuite.
I like OneSuite. Incredibly low long distance phone rates. As low as USA-Canada 1.9CPM! Works as prepaid phone card. PIN not needed for calls from home or cell phone. Compare the rates at
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No monthly fee or minimum. Use Promotion/SuiteTreat Code: "FREEoffer23" for FREE time. Altho from USA payphones there is a surcharge, there is NONE from Canadian payphones.