共找到 2448 条与 综合业务数字网(ISDN) 相关的标准,共 164 页
Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) p
Integrated Services Digital Network (ISDN); Multiple Subscriber Number (MSN) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for T
Integrated Services Digital Network (ISDN); Calling Line Identification Presentation (CLIP) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra In
Amendment 1 - Information technology - Configuration of customer premises cabling (CPC) for applications - Part 1: Integrated services digital network (ISDN) basic access
The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical
Relationships among ISDN IP-based network and physical layer performance Recommendations Study Group 13
This Recommendation describes relationships among the following ITU-T Recommendations: G.781, G.783, G.798, G.803, G.810, G.811, G.812, G.813, G.821, G.822, G.823, G.824, G.825, G.826, G.827, G.828, G.829, G.921, G.8201, G.8251, I.350, I.352, I.353, I.354, I.355, I.356, I.357, I.358, I.359, I.381, Y.1530, Y.1540, Y.1541, Y.1560 and Y.1561. Collectively, these Recommendations provide the basis for the specification and apportionment of performance in narrow-band and broadband ISDNs, Internet Protocol (IP)-based networks, and digital layers of transport networks. They include jitter, wander, and network synchronization and timing performance. These Recommendations are intended to be used in describing performance between the measurement points that delimit and apportion international ISDNs, IP-based networks, and digital layers of transport networks. The relevant Recommendations and their relationships are illustrated in Figure 1. The 3 × 3 performance description framework defined in ITU-T Rec. I.350 is used to illustrate the relationships among particular Recommendations. Three protocol-independent telecommunication functions are identified in the matrix: access, user information transfer, and disengagement. These general functions correspond to specified aspects of ISDN, IP-based network, and transport network digital layer services conforming to ITU-T standardized protocols1. Each function is considered with respect to three general performance concerns (or "performance criteria"): speed, accuracy, and dependability. These express, respectively, the delay or rate, degree of correctness, and degree of certainty with which the function is performed. Recommendations shown within the matrix define sets of protocol-specific parameters ("primary parameters") that describe performance relative to each function and criterion. An associated model provides a basis for describing overall service availability. A specified availability function compares the values for a subset of the primary parameters with corresponding outage thresholds to classify the services as "available" (no service outage) or "unavailable" (service outage) during scheduled service time. Figure 1 presents the Recommendations that specify availability functions and define availability parameters associated with ISDN, IP-based network, and transport network digital layer services. Recommendations concerning jitter, wander, and timing and synchronization performance of digital networks are illustrated in Figure 1 by their relationships to the complementary aspects of network level jitter, wander, and synchronization performance and related timing equipment performance.
Relationships among ISDN IP-based network and physical layer performance Recommendations Also Listed as I.351 and Y.1051
B-ISDN ATM adaptation layer - Service specific connection oriented protocol in a multilink and connectionless environment (SSCOPMCE); Amendment 3: API for SSCOPMCE over Ethernet and UDP port number
This European standard specifies requirements in the telecommunications sector.
Integrated Services Digital Network (ISDN) - Application of the ISDN User Part (ISUP) of ITU-T Signalling System No. 7 (SS7) for international ISDN interconnections (ISUP version 1); Amendment 1: International Emergency Preference Scheme (IEPS) service [I
This European standard specifies requirements in the telecommunications sector.
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 m
This European standard specifies requirements in the telecommunications sector.
Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7) - ISDN User Part (ISUP) version 4 for the international interface - Part 22: International Emergency Preference Scheme (IEPS) service [ITU-T Amendments (2002) to Q.761 - Q.764 (199
This European standard specifies requirements in the telecommunications sector.
Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7) - ISDN User Part (ISUP) version 4 for the international interface - Part 33: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) pro
The present document specifies the Abstract Test Suites (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma for the User side of the T reference point or coincident S and T reference point of implementations conforming to the stage three standard for the diversion supplementary services for the pan-European Integrated Services Digital Network (ISDN) by means of the Digital Subscriber Signalling System No. one (DSS1) protocol, EN 300 207-1 [1]. The present document specifies the Test Suite Structure and Test Purposes (TSS&TP) related to this ATS and partial PIXIT proforma specification. Other parts specify the TSS&TP and
Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
The purpose of this Recommendation is to analyse, structure and suggest a method for establishing an incident management organization, within a telecommunication organization involved in the provision of international telecommunications, where the flow
Incident organization and security incident handling: Guidelines for telecommunication organizations Study Group 2
This Recommendation provides an overview and framework that identifies security threats to telecommunication networks in general (both fixed and mobile; both voice and data) and gives guidance for planning countermeasures that can be taken to mitigate t
Telecommunication networks security requirements Study Group 2
Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call offer supplementary service [ISO/IEC 14843 (2003), modified]
Private Integrated Services Network (PISN); Specification, functional model and information flows; Call offer supplementary service [ISO/IEC 14841 (1996) modified]
B-ISDN ATM adaptation layer - Service specific connection oriented protocol in a multilink and connectionless environment (SSCOPMCE); Amendment 2: API for SSCOPMCE over Ethernet; Erratum 1
B-ISDN ATM adaptation layer - Service specific coordination function for signalling at the network node interface (SSCF at NNI); Erratum 1
This European standard specifies requirements in the telecommunications sector.
Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol - B-ISDN user-network interface layer 3 specification for basic call/bearer control - Part 6: Abstract Test Suite (ATS) and partial Protoc
This European standard specifies requirements in the telecommunications sector.
Integrated Services Digital Network (ISDN); User-to-User Signalling (UUS) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Te
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