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R2 signalling through 2Mbit/s (D2048U) leased line between TE and PSTN

Integrated Services Digital Network (ISDN) - Signalling System No.7 - Message Transfer Part (MTP) to support international interconnection - Part 1: Protocol specification [ITU-T Recommendations Q.701, Q.702, Q.703, Q.704, Q.705, Q.706, Q.707 and Q.708 modified]

Integrated Services Digital Network (ISDN) – Signalling System No.7 – Signalling Connection Control Part (SCCP) (connectionless and connection-oriented) to support international interconnection – Part 1: Protocol specification

Integrated Services Digital Network (ISDN) - Signalling System No.7 (SS7) - Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to support international interconnection - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification

Integrated Services Digital Network (ISDN) - Primary rate User-Network Interface (UNI) - Part 1: Layer 1 specification

Integrated Services Digital Network (ISDN) - Basic User-Network Interface (UNI) - Part 1: Layer 1 specification

Integrated Services Digital Network (ISDN) – Calling Line Identification Presentation (CLIP) supplementary service – Service description

Integrated Services Digital Network (ISDN) – Calling Line Identification Restriction (CLIR) supplementary services – Service description

Integrated Services Digital Network (ISDN) – Calling Line Identification Presentation (CLIP) supplementary service – Digital Subscriber Signalling System No. one (DSS1) protocol – Part 1: Protocol specification

Integrated Services Digital Network (ISDN) – Calling Line Identification Restriction (CLIR) supplementary services – Digital Subscriber Signalling System No. one (DSS1) protocol – Part 1: Protocol specification

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 1: Overview

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 2: Physical Layer (PHL)