Tone Signalling; Appendix A - Iridium ICHU1000 Operating Instructions Manual

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Appendix A

Tone Signalling

1800 Hz
1440 Hz
900 Hz
450 Hz
RECEIVING CALLS
DEEP
HIGH
ALTERNATING
SLOWLY
ALTERNATING
FAST
TRANSMITTING CALLS
READY
BUSY
WAITING FOR
CONNECTION
NON
EXISTING
36329B
0125
1 sec.
25

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