| U.1 |
Signalling conditions to be applied in the
international telex service
|
| U.2 |
Standardization of dials and dial pulse
generators for the international telex service
|
| U.3 |
Arrangements in switching equipment to minimize
the effects of false calling signals
|
| U.4 |
Exchange of information regarding signals
destined to be used over international circuits
concerned with switched teleprinter networks
|
| U.5 |
Requirements to be met by regenerative repeaters
in international connections
|
| U.6 |
Prevention of fraudulent transit traffic in the
fully automatic international telex service
|
| U.7 |
Numbering schemes for automatic switching
networks |
| U.8 |
Hypothetical reference connections for telex and
gentex networks |
| U.10 |
Equipment of an international telex position
|
| U.11 |
Telex and gentex signalling on intercontinental
circuits used for intercontinental automatic
transit traffic (type c signalling)
|
| U.12 |
Terminal and transit control signalling system
for telex and similar services on international
circuits (type D signalling)
|
| U.15 |
Interworking rules for international signalling
systems according to Recommendations U.1, U.11
and U.12 |
| U.20 |
Telex and gentex signalling on radio channels
(synchronous 7-unit systems affording error
correction by automatic repetition)
|
| U.21 |
Operator recall on a telex call set up on a
radiotelegraph circuit
|
| U.22 |
Signals indicating delay in transmission on
calls set up by means of synchronous systems
with automatic error correction by repetition
|
| U.23 |
Use of radiotelegraph circuits with ARQ
equipment for fully automatic telex calls
charged on the basis of elapsed time
|
| U.24 |
Requirements for telex and gentex operation to
be met by synchronous multiplex equipment
described in Recommendation R.44
|
| U.25 |
Requirements for telex and gentex operation to
be met by code- and speed-dependent TDM systems
conforming to Recommendation R.101
|
| U.30 |
Signalling conditions for use in the
international gentex network
|
| U.31 |
Prevention of connection to faulty stations
and/or station lines in the gentex service
|
| U.40 |
Reactions by automatic terminals connected to
the telex network in the event of ineffective
call attempts or signalling incidents
|
| U.41 |
changed address interception and call
redirection in the telex service
|
| U.43 |
Follow-on calls |
| U.44 |
Multi-address calls in real time for broadcast
purposes in the international telex service
|
| U.45 |
Response to the not-ready condition of the telex
terminal |
| U.46 |
Interruption of automatic transmission and flow
control in the international telex service
|
| U.60 |
General requirements to be met in interfacing
the international telex network with maritime
satellite systems
|
| U.61 |
Detailed requirements to be met in interfacing
the international telex network with maritime
satellite systems
|
| U.62 |
General requirements to be met in interfacing
the international telex network with the fully
automated maritime VHF/UHF radio system
|
| U.63 |
General requirements to be met in interfacing
the international telex network with the
maritime "direct printing" system
|
| U.70 |
Telex service signals for telex to teletex
interworking |
| U.74 |
Extraction of telex selection information from a
calling telex answerback
|
| U.75 |
Automatic called telex answerback check
|
| U.80 |
International telex store and forward access
from a telex subscriber
|
| U.81 |
International telex store-and-forward - Delivery
to a telex subscriber
|
| U.101 |
Signalling systems for the Intex service (types
E and F signalling)
|
| U.102 |
Intex and similar services - Network
requirements to effect interworking between
terminals operating at different speeds
|
| U.140 |
Definitions of essential technical terms
relating to telegraph switching and signalling
|
| U.200 |
The international telex service - General
technical requirements for interworking
|
| U.201 |
Interworking between the teletex service and the
international telex service
|
| U.202 |
Technical requirements to be met in providing
the international telex service within an
integrated services digital network
This Recommendation is also included but not
published in I series under alias number I.560
|
| U.203 |
Technical requirements to be met when providing
real-time bothway communications between
terminals of the international telex service and
data terminal equipments on a PSPDN or via the
PSTN |
| U.204 |
Interworking between the international telex
service and the public interpersonal messaging
service |
| U.205 |
Store-and-retrieve facility for the delivery of
messages from a terminal of the international
telex service to a data terminal equipment which
connects to a packet-switched public data
network over the public switched telephone
network |
| U.206 |
Technical requirements for interworking between
the international telex service and the videotex
service |
| U.207 |
Technical requirements to be met for the
transfer of messages between terminals of the
international telex service and group 3
facsimile terminals connected to the PSTN
|
| U.208 |
The international telex service - Interworking
with the INMARSAT C system using one-stage
selection |
| U.210 |
Intex service Network requirements to effect
interworking with the international telex
service |
| U.220 |
The international telex service - Technical
requirements for a status enquiry function in an
interworking scenario
|
| U.Sup1 |
[Withdrawn] Signalling
characteristics and timing of the MARISAT telex
service |
| U.Sup2 |
[Withdrawn] Signalling
arrangements in the Maritime Satellite Telex
Service via the MARISAT system
|
| U.Sup3 |
[Withdrawn] Telex
signalling arrangements in the Nordic Maritime
Satellite coast Earth Station
|
