Note: The following information applies to the IS440.x 5G Radio.

	The IS440.x supports PTT applications. These applications work on a data connection in the WLan or 4G/5G network.
	For PTToCradio operation, it is necessary for the devices that are to communicate with each other to use the app from the same manufacturer.
	Some providers of PTT applications also have accessories in their portfolio that allow you to integrate existing analogue radios (PMR) and even TETRA radios into your PTT application. This requires additional hardware to be put into operation. More detailed information on the necessary accessories and the associated costs must be requested from the provider itself.