AS of January 5th 2002, Area code 847 will have to start dialing 11 digits for local calls because of the new area code 224 that is going to "overlay" the area. I just talked to Avaya help desk Friday. They charged us $130.00 to make 15 minutes worth of changes and they didn't know if it was going to work until we tried it. Anyone needing help with this... leave me a message at SM@PriesterAv.com .... If you can program the switch... It's not much changes.