Question : Problem: using cisco 7921 wireless ip phone with wireless

I purchased a Cisco IP telephone 7921. It's a wireless ip phone that came with the desk top set as well. I thought it would connect to my wireless network and I would be able to use it to make calls. I now know this is not the case. So getting to the point, what do I need to buy to get this working

Answer : Problem: using cisco 7921 wireless ip phone with wireless

You will need callmanager or callmanager express to register the phone to. You will then need an ISDN line or a connection to a SIP provider and a cisco router. This is all very expensive and designed for business scale deployments.

So if you are a home user, sell the phone on ebay and buy something else :)