VoIP via Verizon Down 780k/s up 135k/s DSL Line?

Hi,

Does anybody use Verizon DSL($15/month with down 780k/s up 125k/s) for VoIP? I am thinking of using this type of service, but not sure whether the DSL is fast enough for VoIP. I have checked my DSL speed through Vonage website, the speed is around 90% rating with

Thanks.