ITU E.104:1995
ITU E.104:1995 International Telephone Directory Assistance Service And Public Access Provide an overview of methods and general principles to be followed in organizing an International Telephone Directory Assistance Service.
Table of Contents
1Introduction2Scope
3Methodsofobtaininginformation
4Generalprinciplesapplicabletothevarious
methodsofobtaininginformation
5Chargingandaccounting
6Qualityofservice