No. The device has automated communication in the event that the offender violates one of the conditions of his monitoring, so there's no intervention required. The device automatically calculates that and displays the message.
We can send automated messages to the device from the data centre, which can be requested by the officer simply logging onto the system.
When the officer receives a text message on his cellphone that says offender ABC has violated this rule, he can hit reply on his cellphone, which routes a message back through our data centre and sends the message to the offender. So with very little effort or time consumed, he can respond to that offender.
Then the device is capable of receiving phone calls from up to five different numbers, because we don't want an offender's girlfriend, for example, to get hold of the number on the phone. Then, by law, he has to be allowed to make a 911 call because it's a cellular device, but other than that there's no means of communication.