ITU E.183:1998
ITU E.183:1998 Guiding Principles For Telephone Announcements Gives guidance on the content and timing of announcements used in telephone services.
Table of Contents
1Introduction2Contentofannouncements
3Timingofannouncements
4Speechquality
5Tonesafterannouncements
6Concatenated-wordannouncements
6.1Fluencyproblems
6.2Intonationproblems
6.3Presentationofnumericalinformation
6.4Updateproblems
7Tonesandannouncementsforuseintelephoneservices
8Preferredlisteninglevelsforannouncements