Netzero & Juno dial 2222

I have two people who are having problems with their dial up connections. One is using Netzero and the other Juno. Both have Nortan installed and up to date. Both have been scaned and cleaned of spyware. Both modems keep changing number to dial for outside line to 2222. Than every 5 to 10 seconds modem will auto dial 2222 and get recorded message “if you want to make a call….”. Both can get connected to Internet if you have juno or netzero dial in between the auto dials. How do I stop this anoyance.