Can you have two VoIP Providers on one internet service?

[guest]

I would like to know if it is posible to have two voip providers on one router or one Internet service?

[Mike]

I see no reason why you shouldn't be able to have two voip providers on one internet service, but you will of course require one ATA device for each service though. I have not tried this personally. Please let us know how it works out.
Best Regards,
Mike