Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ITU-T DIS : 2020
• Năm ban hành / Publication date: 2001
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Identify call location for emergency service
• Số trang / Page: 11
• Phạm vi áp dụng / Scope of standard: 1 Introduction2 Scope 3 References 4 Terms and definitions 4.1 Terms defined here 5 Abbreviations and acronyms 6 Description of available technologies6.1 Network based 6.1.1 For fixed network operators, all the needed information is stored in the fixed operator's database, which is mainly the address of the caller6.1.2 For mobile network operators, the call location can be identified by multiple ways, either by Cell ID, or Cell ID with timing advance, or by cell ID with timing advance and received signal strength, as described below 6.2 Handset based 6.2.1 Advanced mobile location 6.2.2 Smartphone applications6.3 Satellite systems 6.4 Cases used or experiences of different countries 6.4.1 European Union 6.4.2 North America