11. However, until the telecommunications authorities decide to utilize ISDN, the status remains unchanged. 12. Hong Kong's Office of the Telecommunications Authority said it posed no risk to aircraft. 13. Telecommunications are regulated by the Telecommunications Authority of Trinidad and Tobago ( TATT ). 14. Nonetheless, a statement later Wednesday by the telecommunications authority suggested that things could change. 15. Shahzada Alam, chairman of the state-run Pakistan Telecommunications Authority said, after conducting the auction. 16. Where, 92 is the AMPS and GSM customers respectively allocated by Pakistan Telecommunication Authority . 17. It has helped the telecommunications authorities in Vietnam establish their links with the outside world. 18. National telecommunication authorities use various formats for area codes. 19. All satellites which use SvalSat need a concession from the Norwegian Post and Telecommunications Authority . 20. The Telecommunications Authority was established by means of the Law 4502, dated 29 January 2000.
