Hi, I'm a newbie, so sorry if the question seems stupid to some of you... I just Installed VOIP at home. I have succesfully configured a Grandstream ht486 at home to connect to my sip server with a username and a password. I can now use my phones at home to recieve and send calls to anywhere Now at work, I downloaded the 3Cx software phone. I configured my accound with the same server, username and password as I did at home. The software says it's registered with my sip server but it won't recieve calls. I can place calls to anywhere, but when I call my phone number, my home phones will ring, but my office 3Cx software won't... Is there something I'm missing. Thanks a lot for your help !