If you have questions about your class of service, contact your Telephone Coordinator. The telephone system provides voice response messages to notify the ITE user of features and call status. It is not necessary to wait for the third repetition and dial tone. You may proceed immediately and interrupt the voice response message. Internal calls are all calls made from numbers at Argonne to other numbers onsite.
External calls are calls made from Argonne to numbers offsite.
Placing Internal Calls Lift the handset. Dial the number. Dial the access code. Dial the number. You can both place a call on hold and retrieve a call from bold.