Audio Signal Tones
= High Tone;
Description
Idle
• Back to Home display
• Back to rotary volume
use when rotary scroll
timer expires
• Back to coverage
• Back to full service
Clear-to-send
Bad key press
• Good key press
• MTP850 self-test fails at
power up
• From out-of-service to
in-service
In Call
Call clear warning
Call waiting tone while
Phone or Private Call are
pending.
Data connected or
Data disconnected
Talk Permit sounds upon
pressing the PTT.
Talk permit without
gateway sounds upon
pressing PTT. The tone
indicates the gateway is
no longer available.
• Talk prohibit
• System busy
• Time-out timer expire
• Called MTP850 not
available or busy
Call disconnected or
failed due to network
Wrong number dialed
8
= Low Tone;
Type
Repeated
Once
Once
Once
Once
Once
Every 6 seconds,
until a call is
terminated.
Once
Once (Normal Tone)
Once (Short Tone)
Twice
Once
Until you release the
PTT.
Once
No tone