Gee, it's too bad there are no alternatives that allow you to make free VOIP calls.
Something like SIPDroid
sure would be handy. Well if you can't get SIPDroid on your Prime maybe there is another possibility (or 5)
Maybe if you'd ask about something rather than just gripe and moan, assuming that it can't be done, you'd get some assistance rather than a dose of sarcasm.
You might not want to try to set up a SIP provider though. It will take some research, some reading, and you might have to <gasp> Google for some information. Nevermind the possibility of searching on XDA for information.
People say I'm critical, but that's part of critical thinking. That's a skill you may want to try to develop.