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The ITU-T mission is to ensure the efficient and timely production of standards covering all fields of telecommunications and Information Communication Technology (ICTs) on a worldwide basis, as well as defining tariff and accounting principles for international telecommunication services. [2]
V.32 (11/88) is an ITU-T recommendation for a modem operating as full-duplex on a 4-wire circuit, or half-duplex on a two-wire circuit, allowing bidirectional data transfer at either 9.6 kbit/s or 4.8 kbit/s at a symbol rate of 2,400 baud instead of the 600 baud of the V.22 standards. V.32bis (02/91) is an ITU-T recommendation for a modem ...
E.164 is an international standard ( ITU-T Recommendation), titled The international public telecommunication numbering plan, that defines a numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks . E.164 defines a general format for international telephone numbers.
ITU-T recommendations. ITU-T Recommendations are the names given to telecommunications and computer protocol specification documents published by the Telecommunication Standardization Sector (ITU-T) of the International Telecommunication Union . Series. Description.
An Application guide for Recommendation ITU-T P.863 was approved in 2019 and published as ITU-T P.863.1. In addition to the above listed full reference methods, the list of ITU-T’s objective voice quality measurement standards also includes ITU-T P.563 (no-reference algorithm). Testing typology
X.509 is defined by the ITU's "Standardization Sector" (ITU-T's SG17), in ITU-T Study Group 17 and is based on Abstract Syntax Notation One (ASN.1), another ITU-T standard. History and usage [ edit ] X.509 was initially issued on July 3, 1988, and was begun in association with the X.500 standard.
t. e. G.711 is a narrowband audio codec originally designed for use in telephony that provides toll-quality audio at 64 kbit/s. It is an ITU-T standard (Recommendation) for audio encoding, titled Pulse code modulation (PCM) of voice frequencies released for use in 1972. G.711 passes audio signals in the frequency band of 300–3400 Hz and ...
The Video Coding Experts Group or Visual Coding Experts Group ( VCEG, also known as Question 6) is a working group of the ITU Telecommunication Standardization Sector (ITU-T) concerned with standards for compression coding of video, images, audio signals, biomedical waveforms, and other signals. It is responsible for standardization of the "H ...