Question

3.write down my telephone number.there's a chance you will need it . write down my telephone number in ___________

Answer 1

Answer:

The national conventions for writing telephone numbers vary by country. While international standards exist in the form of the International Telecommunication Union sector ITU-T issued recommendation E.123, national telephone numbering plans define the format and length of telephone numbers assigned to telephones.

The presentation of telephone numbers in this article does not include any international dialing codes necessary to route calls via international circuits. In examples, a numeric digit is used only if the digit is the same in every number, and letters to illustrate groups. X is used as a wildcard character to represent any digit in lists of numbers.