A global tel link (GTL) phone number is a unique set of digits assigned to a specific telephone on a global network. For instance, a GTL phone number can be used to dial a phone in another country, such as +44 20 7946 0366 for a phone in London, England.
GTL phone numbers are essential for global communication, facilitating international calls, business operations, and personal connections. They play a crucial role in connecting people across borders and enabling seamless communication in the modern digital age. A significant historical development was the standardization of GTL phone numbers under the International Telecommunication Union (ITU), ensuring compatibility and interoperability among various countries and telecommunications providers.
