Tyco Electronics MM102014V1 5.6 RECEIVING AND TRANSMITTING VOICE CALLS , 5.7 RADIO TONES

5.6 RECEIVING AND TRANSMITTING VOICE CALLS

As soon as the radio completes the startup/log-on/provision/self-test sequence and registers on the

OpenSky network, voice calls from talk groups in the active profile will be audible.

No action is required to receive a voice call. The display responds to incoming voice calls as follows:

• If the dwell display is set to received talk group/caller ID/alias, the display indicates either the User

ID of the incoming caller, if available, or the talk group’s name. If the selected talk group matches the

receive talk group, caller ID/alias is displayed. Otherwise, the talk group (name) is displayed.

• If the dwell display is not set to received talk group, the display indicates the data appropriate to those

displays, but provides no indication as to the identity of the incoming caller.

Refer to Section 5.13 for detailed information on talk group scanning. Refer to Section 5.19 for detailed

information regarding sending and receiving encrypted calls.

Transmit a voice call as follows:

1. If not already, turn the radio on. See Section 5.1 beginning on page 26 if necessary.

2. If required, log-in to the network using a user ID and password. See Section 5.3 beginning on page 27

as necessary.

3. Select the desired talk group for transmitting on.

4. Press and hold the Push-to-Talk (PTT) button on the hand-held microphone, pause for a moment,

and then speak normally. For maximum clarity, hold the microphone approximately 1 ½ inches from

the mouth and do not shout or whisper into it. If the call is queued by the network, wait for the grant

tone to sound before speaking.

5. Release the PTT button when finished 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.

Refer to Section 5.19 for detailed information regarding sending and receiving encrypted calls.

The radio provides several tones in addition to the volume level tones (sounded momentarily only when

volume level is adjusted) and confirming tones (sounded momentarily when a menu or option is selected).

These tones provide feedback to the user about whether the radio is able to transmit on the channel when

the PTT button is pressed and are described below.

• Deny Tone

If the radio is not able to access the channel when PTT is pressed, the radio will issue three short

beeps, all of the same pitch, as the deny indication. The radio will issue the deny tone when the PTT