2. Setting Up Your Phone22 ICX (International), issued June 2000 ICX-45-750OREnter 9, then 2 to adjust the intercom ring tone. (The phone produces a tone.)4. Press the VOLUME key.5. Press the ON/OFF key.Note: This task requires a display phone.1. While the phone is idle, press the # key.2. Press the VOLUME key several times as needed.SETTING UP FLEXIBLE FUNCTION KEYSYou can set up Flexible Function (FF) keys to initiate system features or to assignspecific extension numbers.Note: You cannot set up FF keys that are dedicated to outside lines. Contact yoursystem administrator or ICX and ICXHD dealer to make changes to dedicated FFkeys.1. Pickup the handset or press the ON/OFF key.2. Press the PROG key.3. Press the FF key to be programmed.4. Do one of the following:If . . . Then . . .You want one-key assess to a certain fea-ture:Notes:• You must enter a dial code whenassigning features. (See Appendix A,“Dial Code List” on page 95.)• Not all dial codes can be stored in FFkeysa. For a fixed dial code, press the REDIALkey. For a flexible dial code, proceed tostep b.b. Enter one of the dial codes listed inAppendix A, “Dial Code List” on page95.**You want one-key access to a specificextension number, plus the ability to pickup the extension’s calls and know when theextension is busy:Enter the extension number.To adjust the display contrast of your phoneTo set up FF keys