ASTEL JSC is a provider of products and services such as mobile communication service consultants,wide area network (wan) design and management services,trunked radio service providers,network providers for mobile telephones (cellular phones),telecommunication operators,telephone network operators, wireless local loop,telephone network operators, analog,telephone network operators, digital,telephone network operators, fibre optics,software consultants, data warehousing,protocol analysers, computer,modems, internal cards,modems, external,modems/terminal adaptors, integrated services digital network (isdn),modems, adsl (asymmetrical digital subscriber line),modems, dsl (digital subscriber line),modems, vdsl (very high bit-rate dsl),modems, asynchronous transfer mode (atm) (terminating equipment),modems, fibre optic,modems, radio frequency (rf), for wireless data communication,modems, infrared, for wireless data communication,modems, pcmcia/pc card,modems, global system for mobile communication (gsm),modems, fax/voice,modem pools,modems, cable,modems, ruggedised, industrial,modems, power line communication (plc),adaptors, videotex,adaptors, asynchronous conversion interface (acia),modem telephone adaptors to international systems,computer peripheral sharing devices,computers and computer hardware, second-hand,coders and decoders for data networks,telephone accounting and billing systems,telecommunication systems, satellite, mobile,telephone conversation recording machines,telephone ringing machines,call announcers for telephones,telephone announcement systems, recorded,information systems, telephone, voice activated,integrated services digital network (isdn) switches,teleloop systems, transmitter to hearing aid,vehicle location systems, automatic,communication equipment, telephonic, for lifts,security encryption equipment, telecommunication systems,telephone conference telecommunication equipment,data communication systems, base to taxi,telecommunications equipment, time division duplex (tdd),emergency call systems for motorways,call centre management systems,image transmission and compression-expansion equipment,voice over dsl (vodsl) equipment,voice data systems, private networks,integrated voice mail systems, private networks,answering machines, videotex,telephone branch exchanges, private, internet protocol (ip pbx/voip pbx),telecommunication terminals,key system/key telephone systems,call systems, remote control, for the elderly and disabled,telephone impulse transmitters, automatic,telephone intercommunication equipment, selective,telephone intercommunication equipment, conference,telephone intercommunication systems, railway,telephone intercommunication equipment, aircrew,telephone intercommunication equipment, marine, shipborne,telephone intercommunication equipment, sub-sea,telephone intercommunication equipment, flameproof,mobile telephones (cellular phones), second-hand,acoustic couplers, data communication,telecommunications network equipment, fibre to the curb systems (fttc),telecommunications network equipment, fibre to the home systems (ftth),telecommunications network equipment, fibre in the loop systems (fitl),telecommunications network equipment, hybrid fibre-coaxial (hfc),routers, digital subscriber line (dsl),routers (computer network), wireless,firewalls, internet,photonic networking systems,local multipoint distribution service (lmds) network equipment,network repeaters,bridges, network,network traffic shaping equipment,internet protocol (ip) broadband boxes, set-top,data communication transmitters-receivers,line splitters, telecommunication and data transfer,signal splitters, video monitor,signal boosters/amplifiers for data cables,routers (computer network),telephone switchboards,data switches, manual,data switches, automatic,data switches, fibre optic, for computer networks,data switches, remote,fast ethernet switches,gigabit ethernet switches (gbe),10 gigabit ethernet switches,computer network switches, layer 2,computer network switches, layer 3,computer network switches, layer 4,keyboard video and mouse (kvm) switches,data communication switching equipment,computer network analysers,alarm centres, automatic,prisoner-to-warder call systems, prison complexes.