Mitel MiVoice 4425 IP Vision User Manual page 36

2.15.5.2
2.16
2.16.1
6/1553-ANF 901 54 Uen S2 2016-03-08
Deactivating Headset Preset Mode
To deactivate headset preset mode, Press the Speaker key and hold it down for 4
seconds. A ring signal is heard as acknowledgment and the headset icon disappears.
TONES AND RING SIGNALS
TONE CHARACTERISTICS
The telephone tone signals are as follows:
T DBC 425
ELEPHONE
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