Priority Calling Priority Calling sends a busy, on-campus extension a three-burst Priority Alerting Ring or Priority Call Waiting Tone. It is reserved for use in emergency situations and is available on only a few campus telephones. To initiate Priority Calling Depress switchhook one full second; listen for dial tone:. Dial *8; listen for dial tone. Redial on-campus extension. To initiate Priority Calling Depress Flash Button; listen for dial tone:. Dial *8; listen for dial tone. Redial on-campus extension.   If you hear a Call Waiting Destination Ring the called extension is busy but is being notified with a priority call waiting tone. To answer a Priority Call When you are on the phone and hear a Priority Alerting Ring: Depress switchhook one full second. Dial #7; speak to the caller. To answer a Priority Call When you are on the phone and hear a Priority Alerting Ring: Depress Flash Button. Dial #7; speak to the caller.   Need Help? Call 735-HELP to speak with a Customer Service staff person.