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TAPI uses Microsoft canonical address format for telephone numbers [1] [2] to make phone calls. It is a derivative of E.123 international notation. The canonical address is a text string with the following format: +Country␣(AreaCode)␣ SubscriberNumber | Subaddress ^ Name CRLF.
Microsoft canonical address format for telephone numbers [2] [3] derives from E.123 international notation by allowing explicit indication of area code with parentheses. The canonical format is used by the Telephony API (TAPI) , a Windows programming interface for dial-up fax, modem, and telephone equipment.
In Turkey the format for telephone numbers is commonly seen as 0BBB AAA AA AA. While landline numbers having the prefix 02BB AAA AA AA, 03BB AAA AA AA, or 04BB AAA AA AA [9] mobile numbers have the prefix 05BB AAA AA AA. Landline area codes are separated by cities and only one city, Istanbul, has two area codes: 216 for the Asian side, and 212 ...
Before 2010, area codes and subscriber telephone numbers had no fixed size, meaning that some subscriber numbers may be as short as two digits. As a result, dialing sequences are generally of a variable length, except for some non-geographic area codes for which subscriber numbers use a fixed-length format.
A telephone directory, commonly called a telephone book, telephone address book, phonebook, or the white and yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. Its purpose is to allow the telephone number of a subscriber identified by ...
In the international telephone network, the format of telephone numbers is standardized by ITU-T recommendation E.164. This code specifies that the entire number should be 15 digits or shorter, and begin with an international calling prefix and a country prefix.
Telephone number mapping is a system of unifying the international telephone number system of the public switched telephone network with the Internet addressing and identification name spaces. Internationally, telephone numbers are systematically organized by the E.164 standard, while the Internet uses the Domain Name System (DNS) for linking ...
E.164 defines a general format for international telephone numbers. Plan-conforming telephone numbers are limited to only digits and to a maximum of fifteen digits. [ 1 ] The specification divides the digit string into a country code of one to three digits, and the subscriber telephone number of a maximum of twelve digits.