I have a question regarding the modem on my PC. My OS is Windows Vista and my IP is NetZero. When someone tries to call on my phone, it won't disconnect my Internet dial-up service. Instead, callers listen to my line ringing and ringing. How can I fix my modem software so that incoming calls will get through (IOW, my phone will ring)? I went to the control panel and can't figure it out. Than you!