TELEPHONE TERMINAL EQUIPMENT
PURPOSE:To eliminate the anxiety of consuming a battery much more owing to information by ringing a warning tone at the time of off-hooking a handset when the battery is consumed. CONSTITUTION:When the battery 85 is consumed, the warning tone of 100m second width rings twice at the intervals of 100m...
Gespeichert in:
Hauptverfasser: | , , , , , , , , , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PURPOSE:To eliminate the anxiety of consuming a battery much more owing to information by ringing a warning tone at the time of off-hooking a handset when the battery is consumed. CONSTITUTION:When the battery 85 is consumed, the warning tone of 100m second width rings twice at the intervals of 100m second immediately after the handset 19 is off-hooked (after 600m second). Since the warning tone rings for plural times immediately after off-hook, it hardly happens that a user does not notice it, and the consumption of the battery can surely be informed. Since the warning tone finishes ringing in about one second from on-hook, it finishes ringing before the handset 19 is held to the ear of the user in a normal case. Thus, the warning tone is prevented from interfering with the listening of a dial tone and the like from a receiver 27, and a voice from the receiver 27 is prevented from interfering with the listening to the warning tone. |
---|