43967002TH Rev.1 234 /Oki Data CONFIDENTIAL 5. Maintenance Menu5.8.10.2.1 Tonal test procedurePress the [Tonal] button on the "Line Test” screen. The following screen is displayed.Select ContentsROW3 ROW3 (852 Hz) sendROW4 ROW4 (941 Hz) sendCOL1 COL1 (1209 Hz) sendCOL2 COL2 (1336 Hz) sendCOL3 COL3 (1447 Hz) sendCOL4 COL4 (1633 Hz) send5.8.10.3.1 DTMF test procedurePress the [DTMF] button on the "Line Test” screen. The following screen is displayed.Select a signal to test.When the [Stop] key is pressed, signal send is interrupted.When the [Close] button is pressed, the screen returns to the “Line test” screen.When the [Reset] key is pressed, screen returns to the top screen of the service menu.5.8.10.3 DTMF testSignals of the frequencies that are used by the push-button telephone and shown in thefollowing table can be selected for the send test.Select Contents0 DTMF0 (941.Hz + 1336Hz) send1 DTMF1 (697.Hz + 1209 Hz) send2 DTMF2 (697 Hz + 1336 Hz) send3 DTMF3 (697 Hz + 1477 Hz) send4 DTMF4 (770 Hz + 1209 Hz) send5 DTMF5 (770 Hz + 1336 Hz) send6 DTMF6 (770 Hz + 1477 Hz) send7 DTMF7 (852 Hz + 1209 Hz) send8 DTMF8 (852 Hz + 1336 Hz) sendROW1 ROW1(697 Hz) sendROW2 ROW2(770 Hz) sendSelect a frequency to send.When the [Stop] key is pressed, signal send is interrupted.When the [Close] button is pressed, the screen returns to the “Line test” screen.When the [Reset] key is pressed, screen returns to the top screen of the service menu.