User's Manual
20 || G7 EXO TECHNICAL USER MANUAL
6.3 PUSHTOTALK PTT
If EXO has the PTT feature enabled and is in cellular coverage, it is able
to send and receive voice messages with other G7 EXO devices and G7
wearable devices, similar to a walkie-talkie. EXO can still receive and
send PTT transmissions when it is locked by a maintenance code. See
section 3.5 for more information on the maintenance code.
Push-to-talk only works when EXO is connected to the Blackline Safety
Cloud through a cellular network. Push-to-talk does not work during
an alert or alarm unless the alert or alarm has been muted. Push-to-talk
only allows one transmission on a channel at a time.
Volume
Push-to-talk uses EXO’s speaker. The speaker’s volume is set at 85 dB
and cannot be adjusted. See section 3.7 for more information about
the speaker.
Transmitting
1. Press and hold the red latch
2. When EXO nishes beeping, continue to hold and begin talking into
the device
3. When you’re nished talking, release the latch. EXO allows PTT
messages up to 30 seconds in length
4. EXO will beep once more to let you know it’s done listening
Receiving
1. EXO will beep twice to signal an incoming PTT message
2. EXO will play the message
3. EXO will beep once more when the message is nished
NOTE: EXO’s screen will display its current channel.
AVAILABLE CHANNELS
Channels 00 through 99
These channels are recommended for everyday use. When on a specic
numbered channel, EXO:
Transmits to devices on the same channel as EXO
Receives transmissions from devices on the same channel as EXO, as
well as transmissions from devices in the all call channel
All call channel
This channel is recommended for safety supervisors or managers. The
all call channel is the highest priority push-to-talk channel. Incoming all
call transmissions will override other push-to-talk transmissions. When
on the all call channel, EXO:
Transmits to all PTT devices in EXO’s organization
Receives transmissions from devices in the all call channel
Receive only channel
When on the receive only channel, EXO:
Cannot transmit to any devices
Receives transmissions from devices in the all call channel
CHANGING CHANNELS
Changing EXO’s PTT channel is done from the PTT channel menu.
To change to a specic channel number,
1. Press the OK button to enter EXO’s main menu
2. Select PTT channels
3. Select Enter channel #
NOTE: Every channel requires two digits
4. Use the up and down buttons to enter the rst digit of the new
channel. For example, for channel 08 the rst digit is 0.
5. Press the OK button to move on to the next digit
6. Use the up and down buttons to enter the second digit of the new
channel. For example, for channel 08 the second digit is 8.
7. Press the OK button to nish
8. Select Yes to conrm the new channel, or select Edit to make changes
To change to receive only or all call,
1. Press the OK button to enter EXO’s main menu
2. Select PTT channels
3. Select Receive only or All call
4. Read the message on the screen
5. Select Yes to conrm