Key tone length (f35-1), Single alert beep tone (f35-2), Caller id alert (f35-3) – Audiovox CDM-9150X User Manual
Page 76: Service mode alert (f35-4), Normal mode, Short mode, You can change the current mode by or . 3. press, Tone is heard as long as the key is being pressed, You can turn this feature on/off by or . 3. press
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