ITU-T E.300 SUPP 3-1988
North American precise audible tone plan

Standard No.

ITU-T E.300 SUPP 3-1988

Release Date

1988

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T E.300 SUPP 3-1988

Scope

Suplement 3 was approved in Melbourne (1988) and originally published in Blue Book, Fascicle II.2.

ITU-T E.300 SUPP 3-1988 history

• 1988 ITU-T E.300 SUPP 3-1988 North American precise audible tone plan