TSB Circular 30 - Replies to the 2005 Questionnaire on conditions for provision of "call-back"
Alternative Calling Procedures (Call-Back)
The World Telecommunications Standardization Assembly 04 (WTSA-04) adopted Resolution 29 on alternative calling procedures on international telecommunication networks. In that Resolution, the sovereign right of each country to regulate its telecommunications, as expressed in the basic instruments of ITU, was reaffirmed. In this regard, each country has the right to authorize, prohibit or regulate call-back practices. National regulatory measures must be respected by other countries within the limits of their own legislation, and the recognized operating agencies (ROAs) and administrations concerned must communicate and collaborate.