The AN/VRC-97 mobile subscriber radiotelephone terminal (MSRT) enters the MSE network
through the radio access unit (RAU).
The radio access unit (RAU) has a 25 km (15.5 mile) radius area coverage.
When an MSRT is engaged in a telephone conversation and leaves the servicing RAU's range,
the conversation is not terminated as the system will automatically transfer the call to the new