APRIL 10, 1989

t of ISDN Is Proceeding Worldwide

D 4 ka ga | | 1: A | hat
; | fe ei | | se Bapčč ion programs converting  tribution. A full, commercial ISDN t
TRI nment of ISDN "islands' and the network expansion programs converti mia pi NEREIKO ja!
Part five of a m ME aMENon Ki an ISDN overlay network. existing analog switching and transmis:- Cover? all the main business and popu
Part five 0 installaLiOi REN

a oe nie k; rs is not e ] to be in op-
geji iDMm | ital. All major Eu- tion centers is not expected
six-parl series In an island strategy, certain key net- sion eguipment to digital j Jem ee uadlitka eariyst000Š

: centers (normal rresponding ropean countries are installing ISDN ei- . a ariy ive uite dif
NO NE ter mete) sre ORVeH, ther as pilot or commercial network ser- ln PRAH kooet Na h is ozadje
o to ISDN by installing ISDN-compati- vices. The European Community IS ferent y. Al inte Ka rov ase

-. ble switching signalling and transmis- actively involved in promoting ISDN ally mio in les oe te nate stia
| sion eguipment covering a specific geo- (and telecommunications PE in za teli ia services: tRe JapaNeSe
graphic area. This allows the operator general) in each of the member coun' SE ESTEDN of a wic -
to oer limited ISDN faclities durine tries. This is being done ge pika ke JE IT ei sa a sferi
BR NE PEN TV 60 h the creation of a single Europe-  ermmenispotis ae s S ORA RAA
the early stages of development, ex-. jagij le Noben icati roject. This project is called the Infor-
nd Japan. Fat € ; these services as more islands wide market for telecommunications proj! Eo m ME y RE
and Jupetu že sera o SA AN IŠON interworking be-  eguipment and an action program for mation N etwork pičle ea EJ
stag tween islands is established. the installation of ISDN.. a en a RA s ga fiber odo
development, The overlay approach, on the other The aim of creating a single European gies and applicatio

invol ati ications egui to video and fifth-generation computers.
ranging froma hand, involves setting up an entirely market for telecommunications egulp nena "current ISDN plaketi tipe

has to pilot and full commercial im- ne UE oe PN ab en no ne tokove PSTN RA AA ŠI RE the most ambitious and far-reaching.
|. plementation. In a number of countries, The fundamental difference between
go ISDN oma ktiakajac S bo EL INS and other ISDNs lies not in the tech-
pan into the "Information Age" as
sing O O MA V an aii, |. auickly and as coherently as possible.
s of the world differs, in- em — Lonco LEE AE EKI URS AJ NM re RA EM IE OO Also included in the INS project are
ing the regulatory envi-. BEE IMA EI MNE O 51. | | the current research activities on fifth-
he regulatory envi- generation computer systems. When
(the implementation of ISDN, categorized. temi | | LO, NE JAN Li, ,.).| a number of additional ing fea-

; ten CON les (rom network operators, nač

sul

nie

Porečje

VVAL.

| | bov Madiie aa The basic channel structure of INS,
unlike that of the CCITT, was made up
of one 64K-bps channel, one 16K-bps
channel for voice or data and one 8K-
bps signalling channel (64--16--8).

As INS becomes more generally avail-
able, this non-ISDN-standard channel |.
structure is being replaced with the con-
ventional 64--64--16 CCITT channel |.
tical-fiber-based broadband communica

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