Which of the following standard of cordless telephone system is also approved as a 3G standard?

The correct answer is: C. DECT

DECT (Digital Enhanced Cordless Telecommunications) is a digital cordless telephone system that was first developed in the 1980s. It is a widely used standard in Europe and Asia, and is also approved as a 3G standard.

PHS (Personal Handy-phone System) is a digital cordless telephone system that was developed in Japan in the 1990s. It is a popular standard in Japan, but is not widely used in other parts of the world.

PACS (Personal Access Communications System) is a digital cordless telephone system that was developed in the United States in the 1990s. It is not a widely used standard.

CT2 (Cordless Telephone 2) is a digital cordless telephone system that was developed in the United