Final answer:
The AN/PRC-150(C) offers telephony capabilities when used with a Tactical Network Access Hub, likely a VoIP or RoIP gateway, that integrates radio and telephone networks.
Step-by-step explanation:
The radio in question, the AN/PRC-150(C), integrates telephony capability which allows operators to place and receive telephone calls using its keypad. This capability is enabled when the radio is used in conjunction with a specific type of Tactical Network Access Hub. Although the question does not mention the exact model of the hub required, typically, such capability would require a hub that supports the integration of radio and telephone networks, often referred to as a VoIP (Voice over Internet Protocol) or RoIP (Radio over IP) gateway. These hubs serve as a bridge between the radio network and the traditional telephone infrastructure, facilitating seamless communication between different platforms.