An abbreviation for "International Direct Dialing". This is the prefix to dial before the country code when calling another country. Also called the exit code or prefix. The IDD code when calling from the UK is "00". The IDD when calling from a mobile is "+". See Country Dialing Codes
Knowledge is the key to success. That is why we have gone to great lengths to get you these business terms and jargon, and explain them in Plain English. Its very easy to comprehend. Learn to understanding and know your business jargon. This will keep you informed among your peers. Bookmark Your business dictionary.