How do I activate VoIP on iPad?

VOIP, in the generic sense, doesn't require some sort of special connection. It requires Internet access. You don't mention the name of the software you're using so it's hard to make an specific suggestion. However, it could be a firewall issue, the firmware on your router may need to be updated. Give more details and you'll probably get better answers.

Best of luck.

Hi,

I hav account with nymgo. I used to call my home from my nokia phone, by configuring the VoIP.the same can be done in iPad?

I can use nimbuzz to configure nymgo, but I want to know if internally can we configure VoIP in iPad.