Search results
Results from the WOW.Com Content Network
Learn about the history and features of toll-free numbers, which are billed for all arriving calls and identified by a dialing prefix. Find out how to get a toll-free number in different countries and regions, such as 0800 in the UK.
Learn about the history, assignment, and operation of toll-free telephone numbers in the North American Numbering Plan, which have the area code prefixes 800, 833, 844, 855, 866, 877, and 888. Find out how to call or get a toll-free number in the U.S. or Canada, and what are the special cases and restrictions.
Learn about the history and features of ANI, a telecom network service for identifying the originating telephone number on toll calls. Find out how ANI differs from caller ID, toll-free numbers, and DNIS.
The North American Numbering Plan (NANP) is a telephone numbering system for twenty-five regions in twenty countries, mainly in North America and the Caribbean. It uses the country code 1 and divides the territories into numbering plan areas (NPAs) with three-digit area codes.
Sheraton's 800‑325‑3535, one of the notable early adopters in late 1969, was hard-wired into St. Louis area code 314; [6] 1‑800‑HOLIDAY at that time could not be a U.S. number if the 1‑800‑465 prefix was hard-wired to Thunder Bay's area code 807. Any attempt to call a foreign 1‑800 gave a pre-recorded error, "the number you have ...
A comprehensive table of computer monitor, television, digital film, and other graphics display resolutions that are in common use. The table shows the resolution type, designation, usage, width, height, aspect ratio, and total pixels for each resolution.
A RespOrg is a company that maintains the registration for individual toll-free telephone numbers in the North American Numbering Plan. Learn about the history, operation, and regulatory framework of RespOrgs and their role in telecommunications.
Learn about the types, structures and formats of telephone numbers in different regions and networks. The International Telecommunication Union (ITU) has established a comprehensive numbering plan, E.164, for uniform interoperability of the networks of its member states or regional administrations.