High-level data link control (HDLC) procedures - CCITT X.25 LAPB-compatible data link procedures for data terminal equipment; identical with ISO/IEC DIS 7776:1993
€140.00
Signalling Protocols and Switching (SPS) - V interfaces at the digital Local Exchange (LE), V5.2 interface for the support of Access Network (AN) - Part 1: V5.2 interface specification; English version ETS 300347-1:1994
€229.44
Signalling Protocols and Switching (SPS) - V interfaces at the digital Local Exchange (LE), V5.2 interface for the support of Access Network (AN) - Part 2: Protocol Implementation Conformance Statement (PICS) proforma; English version ETS 300347-2:1994
€91.03
Private Telecommunication Network (PTN) - Specification, functional model and information flows - Call offer supplementary service; English version ETS 300361:1994
€116.64
Private Telecommunication Network (PTN) - Inter-exchange signalling protocol - Call offer supplementary service; English version ETS 300362:1994
Private Telecommunication Network (PTN) - Specification, functional model and information flows - Do not disturb and do not disturb override supplementary services; English version ETS 300363:1994
€173.74
Private Telecommunication Network (PTN) - Inter-exchange signalling protocol - Do not disturb and do not disturb override supplementary services; English version ETS 300364:1994
€145.14
Transmission and Multiplexing (TM) - Synchronous Digital Hierarchy (SDH) information model for the Network Element (NE) view; English version ETS 300304:1994
€128.22
Transmission and Multiplexing (TM) - Plesiochronous Digital Hierarchy (PDH) information model for the Network Element (NE) view; English version ETS 300371:1994
Signalling Protocols and Switching (SPS) - Q3 interface at the Access Network (AN) for configuration management of V5 interfaces and associated user ports - Part 1: Q3 interface specification; English version ETS 300376-1:1994
Signalling protocols and switching (SPS) - Q3 interface at the Local Exchange (LE) for configuration management of V5 interfaces and associated customer profiles - Part 1: Q3 interface specification; English version ETS 300377-1:1994
€179.53
Transmission and Multiplexing (TM) - Synchronous Digital Hierarchy (SDH) - Multiplexing structure; English version ETS 300147:1995
€41.78
Private Telecommunication Networks (PTN) - Terms and definitions; English version ETS 300415:1995
€56.17
Distributionboxes for telecommunication systems; dimensions, types
€34.30
Business telecommunications (BT); Open Network Provision (ONP) technical requirements; 2048 kbit/s digital unstructured leased line (D2048U); connection characteristics; English version ETS 300247:1993
€77.20
