MM102014V1, Rev. G
is pressed if it is out of coverage, if the requested talk group is already active, or if the channel is
busy. The user must release the Push-to-Talk button and re-key the PTT to make another call request.
• Queued Tone
If the radio site is currently fully occupied with calls, a new call request may be queued by the
system. The radio issues three tones, a low-pitched tone followed by two mid-pitched tones, to
indicate the call has been placed in a queue. The user may release PTT at this point. When resources
are available, the radio begins transmitting, the grant tone sounds, and the user must press PTT a pre-
determined amount of time to hold the call up. This time could be set to as little as 0 seconds, in
which case the user would be required to PTT immediately. Check with your System Administrator.
• Grant Tone or Go-Ahead Tone
Sounds when resources become available for a call request placed in the queue (if enabled) upon
channel access. The grant tone is a short single beep. When the grant tone is heard, press and hold
the PTT button and begin speaking.
If the transmitter roams to another site while transmitting, the radio will auto rekey and begin
transmitting on that tower. A second grant tone will be sounded to notify the user they have roamed.
• Removed Tone
After access to the radio channel has been granted and the user is transmitting, the radio may be pre-
empted by a high priority call or by loss of coverage. The removed tone is a single long low-pitched
tone, which notifies the user that access to the channel has been lost. When the removed tone is heard,
access to the channel has been lost and the radio is no longer transmitting, even if the PTT button is
being pressed. The PTT button must be re-keyed to regain channel access.
• Start Emergency/Emergency Call Received
When an emergency call is initiated, all users configured to receive emergency call notification and
the initiator of the call will hear three (3) short high-pitched tones.
• Emergency Cleared Tone
When an emergency call has been initiated, the initiator of the call can clear the call by pressing and
holding the emergency button until the emergency cleared tone (one long low-pitched) sounds. This
tone sounds identical to the removed tone.
• Emergency Alert Tone
This tone sounds when an emergency alert is declared. It is three (3) short beeps.
• Selective Call Ring Tone
When a selective call is placed, a ringing tone is heard at the called radio similar to that of a
telephone. The ringing is repeated every four (4) seconds until the call is accepted or rejected by the
radio being called or until the network drops the call if unanswered after one (1) minute.
• Selective Alert Received Tone
When a selective alert is received, the radio will emit a series of four short tones: low, high, low, low.
The four tones are only played once to indicate a selective alert has been received.
• Roam Tone
The roam tone is a quick high-low beep sequence that sounds when the radio transitions from one
radio base station site to another. If this tone sounds just after pressing the PTT button, keep the PTT
button pressed and begin speaking into the microphone after the grant tone sounds.
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