What is a key feature of ENUM technology?

ENUM (Telephone Number Mapping) is a protocol that allows the translation of telephone numbers into internet addresses. This feature is critical as it integrates traditional telephony with internet services, enabling a seamless connection between voice calls and various internet-based applications. By utilizing ENUM, phone numbers can be associated with SIP (Session Initiation Protocol) addresses, making it possible for voice over IP (VoIP) calls to be made more efficiently and cost-effectively.

The integration of telephony with internet services means that ENUM serves as a bridge between the two infrastructures, facilitating services such as unified communications, where voice, video, and data converge on the same platform. This makes ENUM a fundamental technology for modern telecommunications, where connectivity across different networks is essential.

Other options do not accurately describe the core functionality of ENUM. For example, voice encryption, while important for secure communications, is not a defining feature of ENUM itself. The technology does not restrict its operations to analog networks, as it predominantly functions in digital environments. Additionally, ENUM does not rely on physical cables for its operation; rather, it uses the existing telecommunications infrastructure and the internet for its services.