The Indian telephone system also includes unique dialing codes for specific regions and services, such as toll-free numbers. Understanding and using the correct STD code is crucial for effective communication across the country. Overall, STD codes play a vital role in the efficient functioning of ...
is the furthest distance a call can be dialled directly. the std system was completed in 1979, but much of the nation had already been reached long earlier. std system defines std codes for each area, which are officially known as area codes. the subscriber will dial such codes before ...