What technology connects analog signals to digital for transmission?

The technology that connects analog signals to digital for transmission is Voice over Internet Protocol (VoIP). VoIP works by taking traditional analog audio signals (like those from a telephone) and converting them into digital data packets that can be sent over the internet or through other digital networks.

This conversion is essential for enabling voice communications to occur over modern data networks, enhancing the efficiency and flexibility of telecommunication systems. VoIP handles the analog-to-digital conversion, allowing voice calls to be transmitted alongside other types of data, which is a major advantage over traditional telephony systems.

In contrast, other options such as DSL (Digital Subscriber Line) primarily serve to provide high-speed internet connections rather than connecting analog signals directly to digital. Telephony, while relevant to voice transmission, does not specifically refer to the digital conversion process. WAN (Wide Area Network) describes a networking method to connect larger geographical networks and is not specific to the conversion of analog signals to digital formats.