Those among us who use softphones, many have multiple accounts. It is actually quite common because most of us are still experimenting with PC-to-Phone type services. I might have a Skype account but I also use Gizmo, and Google Talk. I would ideally like to have my portal – my webpage – host a plugin that aggregates all my softclient accounts.

Just like embedded flash phones enable you to use any provider’s SIP based VoIP service by saving SIP proxy and username/password in the plugin, you could also have an interface that stores for you account details of multiple VoIP accounts. Something similar to getting emails from all your accounts at one place.