Operational Bulletin No. 1199 (1.VII.2020) and Annexed List:
List of International Signalling Point Codes (ISPC) (According to Recommendation ITU-T Q.708 (03/99)) (Position on 1 July 2020)

Operational Bulletin No. 1219 (1.V.2021)

Operational Bulletin No. 1293 (1.VI.2024) and Annexed List:
List of Signalling Area/Network Codes (SANC) (Complement to Recommendation ITU-T Q.708 (03/1999)) (Position on 1 June 2024)

Technical framework for countering mobile in-application advertising spam

Use cases for structured threat information expression

Security services using software-defined networking

Security framework and requirements for service function chaining based on software-defined networking

ITU-T X.1051 - Supplement on code of practice for information security controls for telecommunication organizations

Telebiometric authentication using biosignals

Interworking between session initiation protocol (SIP) and bearer independent call control protocol or ISDN user part

IMS references to Release 12 for communication between IMS and NGN networks to support end-to-end service interoperability

Signalling architecture for virtualization of control network entities

PSTN/ISDN terminal equipment using IP multimedia core network subsystem; Conformance testing - Part 2: Test suite structure and test purposes

PSTN/ISDN terminal equipment using IP Multimedia core network subsystem; Conformance testing; Part 1: PICS

Framework for solutions to combat counterfeit ICT devices

Stage 3 description for number identification supplementary services using Signalling System No. 7 : Stage 3 description for number identification supplementary services using Signalling System no.7 - Connected line identification restriction

Stage 3 description for number identification supplementary services using Signalling System No. 7 : Stage 3 description for number identification supplementary services using Signalling System No.7 - Connected line identification presentation

Stage 3 description for number identification supplementary services using Signalling System No. 7 : Stage 3 description for number identification supplementary services using Signalling System No.7 - Calling line identification restriction

Stage 3 description for number identification supplementary services using Signalling System No. 7 : Stage 3 description for number identification supplementary services using Signalling System No.7 - Calling line identification presentation

Signalling requirements for SD-WAN service

Interoperability testing requirements of a virtual switch

Signalling requirements for IMS and GSM/UMTS network supporting multi-device emergency telecommunications service

Protocol for managing capability exposure APIs in IMT-2020 networks

Testing methodologies of Internet related performance measurements including e2e bit rate within the fixed and mobile operators' networks

Requirements for signalling network analyses and optimization in VoLTE

Signalling procedures of the probes to be used for remote testing of network parameters

Signalling protocol for heterogeneous Internet of things gateways

Signalling requirements and architecture for the Internet service quality monitoring system

Signalling requirements and architecture for media service entity attachment

Signalling requirements for the separation of control plane and user plane in a virtualized broadband network gateway (vBNG)

Proposal of second draft of K.soft_ba "Overview of particle radiation effects on telecommunications systems"
Source: Fujitsu Limited, Xilinx Incorporation

Timing characteristics of an enhanced synchronous equipment slave clock

Implementation of the generic mechanism in the IEEE 1905.1a-2014 standard to include applicable ITU-T Recommendations

End-to-end quality of service for video telephony over 4G mobile networks

40-Gigabit-capable passive optical networks 2 (NG-PON2): Physical media dependent (PMD) layer specification

Software tools for speech and audio coding standardization

Self-FEXT cancellation (vectoring) for use with VDSL2 transceivers

Physical layer management for G.fast transceivers

Very high speed digital subscriber line transceivers 2 (VDSL2)

Interface between the link layer and the physical layer for digital subscriber line (DSL) transceivers

Indoor optical camera communication transceivers - System architecture, physical layer and data link layer specification

New Appendix V - Provisional planning values for the fullband equipment impairment factor and the fullband packet loss robustness factor

Fast access to subscriber terminals (G.fast) - Physical layer specification

High-speed indoor visible light communication transceiver - System architecture, physical layer and data link layer specification