| V.1 |
Equivalence between binary notation symbols and
the significant conditions of a two-condition
code |
| V.2 |
Power levels for data transmission over
telephone lines |
| V.4 |
General structure of signals of International
Alphabet No. 5 code for character oriented data
transmission over public telephone networks
|
| V.5 |
[Withdrawn]
Standardization of data signalling rates for
synchronous data transmission in the general
switched telephone network |
| V.6 |
[Withdrawn]
Standardization of data signalling rates for
synchronous data transmission on leased
telephone-type circuits
|
| V.7 |
Definitions of terms concerning data
communication over the telephone network
|
| V.8 |
Procedures for starting sessions of data
transmission over the public switched telephone
network |
| V.8bis |
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
public switched telephone network and on leased
point-to-point telephone-type circuits
|
| V.10 |
Electrical characteristics for unbalanced
double-current interchange circuits operating at
data signalling rates nominally up to 100 kbit/s
This Recommendation is also included but not
published in X series under alias number X.26.
|
| V.11 |
Electrical characteristics for balanced
double-current interchange circuits operating at
data signalling rates up to 10 Mbit/s
This Recommendation is also included but not
published in X series under alias number X.27
|
| V.12 |
Electrical characteristics for balanced
double-current interchange circuits for
interfaces with data signalling rates up to 52
Mbit/s |
| V.13 |
Simulated carrier control
|
| V.14 |
Transmission of start-stop characters over
synchronous bearer channels
|
| V.15 |
Use of acoustic coupling for data transmission
|
| V.16 |
Medical analogue data transmission modems
|
| V.17 |
A 2-wire modem for facsimile applications with
rates up to 14 400 bit/s
|
| V.18 |
Operational and interworking requirements for
DCEs operating in the text telephone mode
|
| V.19 |
Modems for parallel data transmission using
telephone signalling frequencies
|
| V.20 |
[Withdrawn] Parallel
data transmission modems standardized for
universal use in the general switched telephone
network |
| V.21 |
300 bits per second duplex modem standardized
for use in the general switched telephone
network |
| 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
|
| V.22bis |
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
|
| V.23 |
600/1200-baud modem standardized for use in the
general switched telephone network
|
| V.24 |
List of definitions for interchange circuits
between data terminal equipment (DTE) and data
circuit-terminating equipment (DCE)
|
| 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 |
| V.25bis |
Synchronous and asynchronous automatic dialling
procedures on switched networks
|
| V.25ter |
Serial asynchronous automatic dialling and
control
This Recommendation was renumbered as V.250
(02/98), and its Annex A as V.251 (02/98)
without being republished.
|
| V.26 |
2400 bits per second modem standardized for use
on 4-wire leased telephone-type circuits
|
| V.26bis |
2400/1200 bits per second modem standardized for
use in the general switched telephone network
|
| V.26ter |
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 |
| V.27 |
4800 bits per second modem with manual equalizer
standardized for use on leased telephone-type
circuits |
| V.27bis |
4800/2400 bits per second modem with automatic
equalizer standardized for use on leased
telephone-type circuits
|
| V.27ter |
4800/2400 bits per second modem standardized for
use in the general switched telephone network
|
| V.28 |
Electrical characteristics for unbalanced
double-current interchange circuits
|
| V.29 |
9600 bits per second modem standardized for use
on point-to-point 4-wire leased telephone-type
circuits |
| V.31 |
Electrical characteristics for single-current
interchange circuits controlled by contact
closure |
| V.31bis |
Electrical characteristics for single-current
interchange circuits using optocouplers
|
| 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
|
| V.32bis |
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
|
| V.33 |
14 400 bits per second modem standardized for
use on point-to-point 4-wire leased
telephone-type circuits
|
| 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
|
| V.35 |
[Withdrawn] Data
transmission at 48 kilobits per second using
60-108 kHz group band circuits
|
| V.36 |
Modems for synchronous data transmission using
60-108 kHz group band circuits
|
| V.37 |
Synchronous data transmission at a data
signalling rate higher than 72 kbit/s using
60-108 kHz group band circuits
|
| V.38 |
A 48/56/64 kbit/s data circuit-terminating
equipment standardized for use on digital
point-to-point leased circuits
|
| V.40 |
[Withdrawn] Error
indication with electromechanical equipment |
| V.41 |
Code-independent error-control system
|
| V.42 |
Error-correcting procedures for DCEs using
asynchronous-to-synchronous conversion
|
| V.42bis |
Data compression procedures for data
circuit-terminating equipment (DCE) using error
correction procedures
|
| V.43 |
Data flow control
|
| V.44 |
Data compression procedures
|
| V.50 |
Standard limits for transmission quality of data
transmission |
| V.51 |
Organization of the maintenance of international
telephone-type circuits used for data
transmission
This Recommendation is published under alias
number M.729. |
| V.52 |
[Withdrawn]
Characteristics of distortion and error-rate
measuring apparatus for data transmission
Replaced by ITU-T O.153 |
| V.53 |
Limits for the maintenance of telephone-type
circuits used for data transmission
|
| V.54 |
Loop test devices for modems
|
| V.55 |
Specification for an impulsive noise measuring
instrument for telephone-type circuits
This Recommendation is published under alias
number O.71. |
| V.56 |
Comparative tests of modems for use over
telephone-type circuits
|
| V.56bis |
Network transmission model for evaluating modem
performance over 2-wire voice grade connections
|
| V.56ter |
Test procedure for evaluation of 2-wire 4 kHz
voiceband duplex modems
This Recommendation includes 2 diskettes
containing the data files used for the voiceband
duplex modems throughput tests. |
| V.57 |
[Withdrawn]
Comprehensive data test set for high data
signalling rates
Replaced by ITU-T O.153 |
| V.58 |
Management information model for V-Series DCEs
|
| V.59 |
Managed objects for diagnostic information of
public switched telephone network connected
V-series modem DCEs
|
| 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
|
| 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
|
| V.75 |
DSVD terminal control procedures
|
| V.76 |
Generic multiplexer using V.42 LAPM-based
procedures |
| V.80 |
In-band DCE control and synchronous data modes
for asynchronous DTE
|
| V.90 |
A digital modem and analogue modem pair for use
on the Public Switched Telephone Network (PSTN)
at data signalling rates of up to 56 000 bit/s
downstream and up to 33 600 bit/s upstream
|
| V.91 |
A digital modem operating at data signalling
rates of up to 64 000 bit/s for use on a 4-wire
circuit switched connection and on leased
point-to-point 4-wire digital circuits
|
| V.92 |
Enhancements to Recommendation V.90
|
| V.100 |
Interconnection between public data networks
(PDNs) and the public switched telephone
networks (PSTN) |
| V.110 |
Support by an ISDN of data terminal equipments
with V-Series type interfaces
This Recommendation is also included but not
published in I Series under alias number I.463.
|
| V.120 |
Support by an ISDN of data terminal equipment
with V-Series type interfaces with provision for
statistical multiplexing
This Recommendation is also included but not
published in I series under alias number I.465
|
| V.130 |
ISDN terminal adaptor framework
|
| V.140 |
Procedures for establishing communication
between two multiprotocol audiovisual terminals
using digital channels at a multiple of 64 or 56
kbit/s |
| V.150.0 |
Modem-over-IP networks: Foundation
|
| V.150.1 |
Modem-over-IP networks: Procedures for the
end-to-end connection of V-series DCEs |
| V.151 |
Procedures for end-to-end connection of analogue
PSTN text telephones over an IP network
utilizing text relay
|
| V.152 |
Procedures for supporting voice-band data over
IP networks |
| V.230 |
General data communications interface layer 1
specification |
| V.250 |
Serial asynchronous automatic dialling and
control |
| V.251 |
Procedure for DTE-controlled call negotiation
|
| V.252 |
Procedure for control of V.70 and H.324
terminals by a DTE
|
| V.253 |
Control of voice-related functions in a DCE by
an asynchronous DTE
|
| V.300 |
A 128 (144) kbit/s data circuit-terminating
equipment standardized for use on digital
point-to-point leased circuits
|
