HKCA* Issue Date Title
2001 12 03/2012 Compliance Test Specification - Safety And Electrical Protection Requirements For Subscriber Telecommunications Equipment
2005 5 02/2003 Network Connection Specification for Connection of 50-Baud or 300-Baud Subscriber Telex Equipment to the Public Telex Network in Hong Kong
2011 6 05/2010 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to Direct Exchange Lines (DEL) of the Public Switched Telephone Network (PSTN) in Hong Kong (with Annex 1 Technical Guide for Conducting Evaluation Test against HKCA 2011)
2012 3 02/2003 Network Connection Specification of Calling Number Display Service for Customer Premises Equipment (CPE) to be Connected by Direct Exchange Line (DEL) to the Public Switched Telephone Network (PSTN) in Hong Kong
2013 4 05/2010 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to Direct-Dial-In (DDI) Line of the Public Switched Telephone Network (PSTN) in Hong Kong (with Annex 1 Technical Guide for Conducting Evaluation Test against HKCA 2013)
2014 5 01/2008 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong using ISDN Basic Rate Access (BRA) based on ITU-T Recommendations
2015 5 01/2008 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong using ISDN Primary Rate Access (PRA) at 1544 kbit/s based on ITU-T Recommendations
2016 5 02/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong using Asynchronous Transfer Mode (ATM)
2017 4 10/2010 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong over Digital Trunk at 1544kbit/s using DTMF Signalling
2018 4 10/2010 Network Connection Specification for connection of Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong over Digital Trunk at 1544kbit/s using DTMF Signalling with Calling Line Identification from the PTN
2019 2 02/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong by Direct Exchange Line (DEL) with Data Interface to Support Analogue Display Services (ADS)
2020 3 02/2003 Performance Specification for Private Payphone Equipment (to Comply with Interim Single Payphone Common Access (SPCA) Requirements) using Access Line to be Connected to the Public Fixed Telecommunications Network in Hong Kong
2021 2 02/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunication Network (PTN) in Hong Kong by ISDN Basic Rate Access (BRA) Interface using Metallic Loops on the Network Side of the Network Termination (NT) - Layer One Specification
2022 2 02/2003 Network Connection Specification of Calling Name Display (CNAM) Service for Customer Premises Equipment (CPE) to be Connected by Direct Exchange Line (DEL) to the Public Switched Telephone Network (PSTN) in Hong Kong
2023 4 10/2010 Network Connection Specification for Connection Of Customer Premises Equipment (CPE) to the Leased Line or Private Circuit provided by the Fixed Telecommunications Network Services (FTN) Operators in Hong Kong for Voiceband Operation
2024 3 02/2003 Performance Specification for Private Payphone Equipment (Not Required to Comply with Interim Single Payphone Common Access (SPCA) Requirements) using Access Line to be Connected to the Public Fixed Telecommunications Network in Hong Kong
2026 4 01/2008 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong using ISDN Basic Rate Access (BRA) based on ANSI Standards
2027 3 02/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong using ISDN Primary Rate Access (PRA) at 1544 kbit/s based on ANSI Standards
2028 3 05/2010 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Networks (PTNs) in Hong Kong Using Digital Leased Circuits at Data Rate of 1544 kbit/s based on ITU-T Recommendation G.703
2029 4 05/2010 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Networks (PTNs) in Hong Kong Using Digital Leased Circuits at Data Rate of 2048 kbit/s based on ITU-T Recommendation G.703
2030 3 05/2010 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Networks (PTNs) in Hong Kong Using Digital Leased Circuits at Data Rates of 64 kbit/s or above based on ITU-T V-Series Recommendations
2031 3 05/2010 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Networks (PTNs) in Hong Kong Using Digital Leased Circuits at Data Rates below 64 kbit/s based on ITU-T V-Series Recommendations
2032 3 04/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Networks in Hong Kong using Asymmetric Digital Subscriber Lines (ADSL) based on ITU-T Recommendation G.992.1
2033 2 02/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to Fixed Telecommunications Networks in Hong Kong using Splitterless Asymmetric Digital Subscriber Lines (ADSL) based on ITU-T Recommendation G.992.2
2034 2 02/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Networks in Hong Kong using Asynchronous Transfer Mode (ATM) with Switched Virtual Connection (SVC)
2035 3 09/2008 Basic Requirements of Telecommunications Equipment for Connection to In-Building Coaxial Cable Distribution System (IBCCDS)
2036 4 09/2008 Network Connection Specification for Access of Cable Modem based on ITU-T Recommendations or DOCSIS Standards to Public Telecommunications Services via In-Building Coaxial Cable Distribution System (IBCCDS)
2037 2 02/2003 Basic Requirements of Broadband Access Equipment for Connection to Local Access Link using Twisted Metallic Pairs
2038 2 02/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Networks (PTNs) in Hong Kong using Optical Leased Circuits with Synchronous Digital Hierarchy (SDH) Interface
2039 2 02/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the Public Telecommunications Networks (PTNs) in Hong Kong using Optical Leased Circuits with Synchronous Optical Network (SONET) Interface
2040 1 10/2003 Network Connection Specification for Connection of Customer Premises Equipment (CPE) to the X.25 Packet Switched Public Data Network
2041 1 07/2004 Network Connection Specification for Connection of Fixed Line Short Message Service (FLSMS) Customer Premises Equipment (CPE) to the Public Telecommunications Network (PTN) in Hong Kong Using ETSI ES 201 912
2102 9.3 06/2017 Procedures for Handling Number Porting by Database Solution
2103 4 12/2013 Requirements for Mobile Number Portability by Database Solution
2104 6 12/2013 Functional Specification of Administration Database For Mobile Number Portability
2108 3.2 06/2017 Functional Specification For NP Administration Database (Non-CRD Approach)
2201 5 08/2005 General Technical Characteristics of Fixed Telecommunications Networks in Hong Kong
2202 4 11/2005 Network Connection Specification for Network-to-Network Connection of the Public Telecommunications Networks (PTNs) in Hong Kong based on ITU-T Signalling System No.7
2203 1 07/1998 Network Connection Specification for Network-to-Network Connection of Calling Name Display Service in the Public Telecommunication Network (PTN) in Hong Kong
2204 2 11/2005 Network Connection Specification for Network-to-Network Connection of Call Forwarding Services in the Public Telecommunications Networks (PTNs) in Hong Kong
2301 1 05/2012 Specification for Lawful Interception of Communications for Public Mobile Networks

* Before the establishment of the Communications Authority (CA) on 1 April 2012, the specifications prescribed by the Telecommunications Authority (TA) were named as HKTA specifications. From 1 April 2012 onward, revised versions of existing HKTA specifications and new specifications prescribed by the CA will be named as HKCA specifications. For the avoidance of doubt, unless the specific issue number of the HKTA specification is explicitly specified, reference in any document to HKTA specification shall be construed as including reference to the corresponding HKCA specification as may be revised from time to time. In addition, reference in any document to HKCA specification shall be construed as referring to the corresponding HKTA specification if the HKCA specification under reference is not yet present.