Glossary of terms and acronyms

• ADSLAsymmetric Digital Subscriber Line
• ARPUan indicator – average monthly revenues from services per user, excluding roaming visitors
• BlackBerrya mobile office solution from Telefónica O2 designed for mobile corporate customers
• BTSBase Transceiver Station for relaying signal to mobile telephones
• CDMACode Division Multiple Access, a modern digital technology for wireless data and broadband internet
• CSRCorporate Social Responsibility
• CTOCzech Telecommunications Office
• DSLAMDigital Subscriber Line Access Multiplexer; a gateway to the network of ADSL access provider
• e-účeta service offering online access to the fixed line billing balance
• EDGEEnhanced Data Rates for GSM Evolution, a mobile digital technology with a faster and more reliable data transmission
• FTPFile Transfer Protocol; a platform-independent protocol for the transfer of files between computers
• GPRSGeneral Packet Radio Service, a technology for mobile data transmission
• GSMGlobal System for Mobile Communication; the most widely deployed digital wireless communication standard for the digital mobile system which globally uses frequencies of 450, 900, 1,800 and 1,900 MHz, and frequencies of 900 and 1,800 MHz in the Czech Republic
• HSCSDHigh-Speed Circuit-Switched Data, a technology for mobile data transmission in the GSM network
• HSDPAHigh Speed Downlink Packet Access, a superstructure technology for data transmission in the UMTS network, with speeds from 8 to 10 Mb/s
• HTTPHypertext Transfer Protocol; an internet protocol for exchanging hypertext documents and other HTML content
• ICTInformation and Communication Technologies
• IFRSInternational Financial Reporting Standards
• IMAPInternet Message Access Protocol an internet protocol for remote access to email
• IP Connecta service for communication using the IP protocol
• IPsec(IP security) a security enhancement to the IP protocol
• IPTVInternet Protocol Television; a television signal broadcast over broadband networks using the IP protocol
• IP VPNInternet Protocol Virtual Private Network, a service of intra-corporate data or voice over IP communication
• LANLocal Area Network a local network for communication between computers in the network
• LTELong Term Evolution for UMTS; the latest concept of data transmission technology in the 3rd generation mobile networks
• MMSa multimedia format for mobile data transmission
• My Europea mobile tariff of Telefónica O2, with free-of-charge incoming calls for roaming users
• My Europe SMSa mobile tariff of Telefónica O2, with free-of-charge incoming calls for roaming users
• NMTNordic Mobile Telephony, a technology standard for mobile telephony networks using the 450 MHz frequency
• O2 Business Unlimiteda tariff of Telefónica O2 for business customers, offering unlimited calls to all fixed line and mobile network free of charge, as part of the monthly subscription
• O2 Business Nonstop Maxa tariff of Telefónica O2 for business customers, offering free calls within the O2 mobile network and to all fixed line networks in the Czech Republic
• O2 Duoa converged service of Telefónica O2 combining unlimited calls to fixed line networks in the Czech Republic with O2 Internet ADSL or O2 TV, all as part of one monthly subscription
• O2 Duo Mobila converged service of Telefónica O2 combining, as part of one monthly subscription, O2 Internet ADSL and a mobile voice tariff; the fixed line rental fee is already included
• O2 Féra service of Telefónica O2 Slovakia, offering a single rate on calls and SMS for the customers of prepaid and contract services, without monthly subscription fee
• O2 Internet ADSLa broadband internet access service of Telefónica O2, formerly branded O2 Internet Expres
• O2 Internet Kompleta service of Telefónica O2 combining fixed line and mobile services
• O2 Internet Mobila CDMA mobile service of Telefónica O2
• O2 [:kůl:]a service of Telefónica O2 with fee SMS
• O2 Neomezená linkathe first VoIP service of Telefónica O2 for business customers
• O2 Neona family of flat rate tariffs
• O2 Trioa converged service of Telefónica O2 combining O2 Internet ADSL, O2 TV and unlimited calls to fixed networks in the Czech republic, all for one monthly fee
• O2 TVan IPTV service of Telefónica O2; digital television over a fixed line
• O2 TXTa mobile tariff of Telefónica O2 designed for prepaid customers who prefer to communicate via SMS and MMS
• OIBDAOperating Income before Depreciation and Amortisation
• Platí to Kvídoa service of Telefónica O2 which lets customers call for free for a duration of one minute
• POP3Post Office Protocol version 3; an internet protocol used for downloading email messages by the client remotely from the server
• RSURemote Subscriber Unit
• SMSShort Message Service; a format of short messages used in mobile telephony
• UMTSUniversal Mobile Telecommunications System; a standard for the so-called 3rd generation mobile networks
• VoIPVoice over Internet Protocol
• VPNVirtual Private Network
• VPNExpres an IP VPN data service of the former ČESKÝ TELECOM; it is based on the ADSL access technology with aggregation, and the MPLS backbone network
• WANWide Area Network; a wider computer network giving remote branches full access to data and providing for communication between the headquarters and the branches and within the branch network
• WAPWireless Application Protocol, a protocol for displaying selected web pages on a mobile telephone display
• WiFia local wireless network for accessing the internet