Ringing Csengetes Keszulek blokk: Personalized Ringing Pattern: 1 - MMM, 2 - HHH, 3 - LLL, 4 - LHH, 5 - HHL, 6 - HLL, 7 - HLH, 8 - LHL (L=530 Hz, M=750 Hz, H=1060 Hz Active Station Ringing: single, silent,cont,if-busy-single csengetés mód gombra: 3: ringer-off csengő ki