Series V - Data communication over the telephone network

File Size Date Recommendation title
v0001e.zip 22KB 12/72 V.1 - Equivalence between binary notation symbols and the significant conditions of a two-condition code
v0002e.zip 23KB 11/80 V.2 - Power levels for data transmission over telephone lines
v0004e.zip 23KB 11/88 V.4 - General structure of signals of international alphabet No. 5 code for character oriented data transmission over public telephone networks
v0007e.zip 22KB 11/88 V.7 - Definitions of terms concerning data communication over the telephone network
v0008-be.zip 195KB 08/96 V.8 bis - Procedures for the identification and selection of common modes of operation between data circuit-terminating equipments (DCEs) and between data terminal equipments (DTEs) over the general switched telephone network and on leased point-to-point telephone-type circuits
v0008e.zip 33KB 09/94 V.8 - Procedures for starting sessions of data transmission over the general switched telephone network
v0010e.zip 106KB 03/93 V.10 - Electrical characteristics for unbalanced double-current interchange circuits operating at data signalling rates nominally up to 100 kbit/s
v0011e.zip 96KB 10/96 V.11 - Electrical characteristics for balanced double-current interchange circuits operating at data signalling rates up to 10 Mbit/s
v0012e.zip 62KB 08/95 V.12 - Electrical characteristics for balanced double-current interchange circuits for interfaces with data signalling rates up to 52 Mbit/s
v0013e.zip 22KB 03/93 V.13 - Simulated carrier control
v0014e.zip 28KB 03/93 V.14 - Transmission of start-stop characters over synchronous bearer channels
v0015e.zip 22KB 10/84 V.15 - Use of acoustic coupling for data transmission
v0016e.zip 71KB 10/76 V.16 - Medical analogue data transmission modems
v0017e.zip 128KB 02/91 V.17 - A 2-wire modem for facsimile applications with rates up to 14 400 bit/s
v0018e.zip 81KB 10/96 V.18 - Operational and interworking requirements for DCEs operating in the text telephone mode
v0019e.zip 24KB 10/84 V.19 - Modems for parallel data transmission using telephone signalling frequencies
v0021e.zip 25KB 10/84 V.21 - 300 bits per second duplex modem standardized for use in the general switched telephone network
v0022-be.zip 197KB 11/88 V.22 bis - 2400 bits per second duplex modem using the frequency division technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
v0022e.zip 147KB 11/88 V.22 - 1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
v0023e.zip 27KB 11/88 V.23 - 600/1200-baud modem standardized for use in the general switched telephone network
v0024e.zip 45KB 10/96 V.24 - List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment (DCE)
v0025-be.zip 128KB 10/96 V.25 bis - Synchronous and asynchronous automatic dialling procedures on switched networks
v0025-te.zip 114KB 07/97 V.25 ter - Serial asynchronous automatic dialling and control
v0025e.zip 47KB 10/96 V.25 - Automatic answering equipment and general procedures for automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices for both manually and automatically established calls
v0025tse.zip 30KB 04/95 V.25 ter Sup. - Serial asynchronous automatic dialling and control
v0026-be.zip 53KB 10/84 V.26 bis - 2400/1200 bits per second modem standardized for use in the general switched telephone network
v0026-te.zip 150KB 11/88 V.26 ter - 2400 bits per second duplex modem using the echo cancellation technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits
v0026e.zip 37KB 10/84 V.26 - 2400 bits per second modem standardized for use on 4-wire leased telephone-type circuits
v0027-be.zip 107KB 10/84 V.27 bis - 4800/2400 bits per second modem with automatic equalizer standardized for use on leased telephone-type circuits
v0027-te.zip 88KB 10/84 V.27 ter - 4800/2400 bits per second modem standardized for use in the general switched telephone network
v0027e.zip 62KB 10/84 V.27 - 4800 bits per second modem with manual equalizer standardized for use on leased telephone-type circuits
v0028e.zip 46KB 03/93 V.28 - Electrical characteristics for unbalanced double-current interchange circuits
v0029e.zip 65KB 11/88 V.29 - 9600 bits per second modem standardized for use on point-to-point 4-wire leased telephone-type circuits
v0031-be.zip 45KB 10/84 V.31 bis - Electrical characteristics for single-current interchange circuits using optocouplers
v0031e.zip 31KB 12/72 V.31 - Electrical characteristics for single-current interchange circuits controlled by contact closure
v0032-be.zip 135KB 02/91 V.32 bis - A duplex modem operating at data signalling rates of up to 14 400 bit/s for use on the general switched telephone network and on leased point-to-point 2-wire telephone-type circuits
v0032e.zip 95KB 03/93 V.32 - A family of 2-wire, duplex modems operating at data signalling rates of up to 9600 bit/s for use on the general switched telephone network and on leased telephone-type circuits
v0033e.zip 115KB 11/88 V.33 - 14 400 bits per second modem standardized for use on point-to-point 4-wire leased telephone-type circuits
v0034c1e.zip 33KB 10/96 V.34 Corrigendum 1 - Title not available.
v0034e.zip 199KB 10/96 V.34 - A modem operating at data signalling rates of up to 33 600 bit/s for use on the general switched telephone network and on leased point-to-point 2-wire telephone-type circuits
v0036e.zip 86KB 11/88 V.36 - Modems for synchronous data transmission using 60-108 kHz group band circuits
v0037e.zip 78KB 11/88 V.37 - Synchronous data transmission at a data signalling rate higher than 72 kbit/s using 60-108 kHz group band circuits
v0038e.zip 72KB 10/96 V.38 - A 48/56/64 kbit/s data circuit-terminating equipment standardized for use on digital point-to-point leased circuits
v0041e.zip 82KB 12/72 V.41 - Code-independent error-control system
v0042-be.zip 138KB 01/90 V.42 bis - Data compression procedures for data circuit- terminating equipment (DCE) using error correcting procedures
v0042e.zip 114KB 03/93 V.42 - Error-correcting procedures for DCEs using asynchronous-to-synchronous conversion
v0050e.zip 21KB 10/68 V.50 - Standard limits for transmission quality of data transmission
v0051e.zip 2KB X V.51 - Organization of the maintenance of international telephone-type circuits used for data transmission
v0053e.zip 23KB 10/68 V.53 - Limits for the maintenance of telephone-type circuits used for data transmission
v0054e.zip 323KB 11/88 V.54 - Loop test devices for modems
v0055e.zip 2KB X V.55 - Specification for an impulsive noise measuring instrument for telephone-type circuits
v0056-be.zip 248KB 08/95 V.56 bis - Network transmission model for evaluating modem performance over 2-wire voice grade connections
v0056-te.zip 193KB 08/96 V.56 ter - Test procedure for evaluation of 2-wire 4 kHz voiceband duplex modems
v0056e.zip 70KB 11/88 V.56 - Comparative tests of modems for use over telephone-type circuits
v0058e.zip 63KB 09/94 V.58 - Management information model for V-Series DCEs
v0061e.zip 306KB 08/96 V.61 - A simultaneous voice plus data modem, operating at a voice plus data signalling rate of 4800 bit/s, with optional automatic switching to data-only signalling rates of up to 14 400 bit/s, for use on the general switched telephone network and on leased point-to-point 2-wire telephone type circuits
v0070e.zip 52KB 08/96 V.70 - Procedures for the simultaneous transmission of data and digitally encoded voice signals over the GSTN, or over 2-wire leased point-to-point telephone type circuits
v0075e.zip 47KB 08/96 V.75 - DSVD terminal control procedures
v0076e.zip 91KB 08/96 V.76 - Generic multiplexer using V.42 LAPM-based procedures
v0080e.zip 62KB 08/96 V.80 - In-band DCE control and synchronous data modes for asynchronous DTE
v0100e.zip 66KB 10/84 V.100 - Interconnection between public data networks (PDNs) and the public switched telephone networks (PSTN)
v0110e.zip 234KB 10/96 V.110 - Support by an ISDN of data terminal equipments with V-Series type interfaces
v0120e.zip 77KB 10/96 V.120 - Support by an ISDN of data terminal equipment with V-Series type interfaces with provision for statistical multiplexing
v0130e.zip 67KB 08/95 V.130 - ISDN terminal adaptor framework
v0230e.zip 467KB 11/88 V.230 - General data communications interface layer 1 specification
v025tnae.zip 40KB 08/96 V.25 ter Annex A - Annex A – Procedure for DTE-controlled Call negociation