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4. Network and Data Sharing
4.1 PMR Network
After the radio is connected to the PMR network, you can access PMR services.
To enable the PMR network, do either of the following:

Tap , and then enable Narrowband.

In the control and notification center, tap the control widget of Narrowband.
4.2 RoIP Network
In TMO, after enabling and registering in the Radio over IP (RoIP) network, the radio automatically switches
between the broadband and narrowband networks according to the network signal. This realizes voice,
data, and multi-media message services. The radio uses the same number to register in different networks,
which guarantees mission-critical voice all the time.
The RoIP feature must be used with the PTT Connect (PTTC) system and trunking system. After connecting
the radio to a WLAN or LTE network, tap
, and then enable RoIP settings.
For operations on voice and data services, see 3.1.1 Group Call , 3.1.2 Private Call , and 3.3.1 PMR Network .
4.3 Cellular Network
Before accessing the cellular network services, ensure that you have properly installed the SIM card. If the
cellular network services are not in use, you can turn off it to decrease data usage and increase battery life.
To enable or disable the cellular network, do either of the following:

Tap , tap Data usage under the Wireless & networks pane, and then tap Cellular data.

In the control and notification center, tap the control widget of Data.
4.3.1 Setting the Cellular Network
1. Tap .
2. Under the Wireless & networks pane, go to More > Cellular networks.
3. Do any of the following: