Wired communications ( such as ITU-T G. hn ) are secured using AES for encryption and X. 1035 for authentication and key exchange.

In 2008, G. 711. 1 codec, which has a scalable structure, was standardized by ITU-T.

Increasing consumer demand for streaming of high definition ( HD ) content has led the industry to develop a number of technologies such as WirelessHD or ITU-T G. hn, which are optimized for streaming HD content without forcing the user to install new networking cables.

IP set-top boxes have a built-in home network interface that can be Ethernet or one of the existing wire home networking technologies such as HomePNA or the ITU-T G. hn standard, which provides a way to create a high-speed ( up to 1Gbit / s ) local area network using existing home wiring ( power lines, phone lines, and coaxial cables ).

The ITU-T G. hn standard, which provides high-speed local area networking over existing home wiring ( power lines, phone lines and coaxial cables ) is based on a TDMA scheme.

* ITU-T G. hn

* Adaptive Differential Pulse Code Modulation ( ADPCM ), former ITU-T G. 721, 32 kbit / s used in STE secure telephone

In switches intended for commercial use, built-in or modular interfaces make it possible to connect different types of networks, including Ethernet, Fibre Channel, ATM, ITU-T G. hn and 802. 11.

The ITU-T G. hn standard, which provides a way to create a high-speed ( up to 1 Gbit / s ) local area network using existing residential wiring ( power lines, telephone lines, and coaxial cables ), uses Selective Repeat ARQ to ensure reliable transmission over noisy media.

* The ITU-T G. hn standard, which provides a way to create a high-speed ( up to 1 Gigabit / s ) local area network using existing home wiring ( power lines, phone lines and coaxial cables ), uses CSMA / CA as a channel access method for flows that don't require guaranteed quality of service, specifically the CSMA / CARP variant.

This type of fiber is normalized by the International Telecommunications Union ITU-T at recommendation G. 651. 1.

ITU-T G. 810 classifies jitter frequencies below 10 Hz as wander and frequencies at or above 10 Hz as jitter.

This is defined in ITU-T Recommendation G. 711.

The ITU-T G. hn standard provides a way to create a high-speed ( up to 1 Gigabit / s ) local area network using existing home wiring ( power lines, phone lines and coaxial cables ).

* The ITU-T G. hn standard, which provides a way to create a high-speed ( up to 1 gigabit per second ) Local area network using existing home wiring ( power lines, phone lines and coaxial cables ).

In 2002 the ITU standardized a channel spacing grid for use with CWDM ( ITU-T G. 694. 2 ), using the wavelengths from 1270 nm through 1610 nm with a channel spacing of 20 nm.

Transponders in some systems supporting 40 GHz nominal operation may also perform forward error correction ( FEC ) via ' digital wrapper ' technology, as described in the ITU-T G. 709 standard.

The introduction of the ITU-T G. 694. 1 frequency grid in 2002 has made it easier to integrate WDM with older but more standard SONET / SDH systems.

* G. hn, an ITU-T standard for high-speed networking over home wiring ( power lines, phone lines and coaxial cables ) employs a combination of TDMA, Token passing and CSMA / CARP to allow multiple devices to share the medium.

It is the predecessor of G. SHDSL which was standardized in February 2001 by ITU-T with recommendation G. 991. 2.

This ETSI variant is compatible with the ITU-T G. SHDSL standardized regional variant for Europe.

G. 723. 1 is a required audio codec in the H. 324 ITU-T recommendation for H. 324 terminals offering audio communication.

* ITU-T Recommendation G. 723. 1-technical speciffication

G. 711 is an ITU-T standard for audio companding.

When the CCITT ( now ITU-T ) was standardizing ATM, parties from the United States wanted a 64-byte payload because this was felt to be a good compromise in larger payloads optimized for data transmission and shorter payloads optimized for real-time applications like voice ; parties from Europe wanted 32-byte payloads because the small size ( and therefore short transmission times ) simplify voice applications with respect to echo cancellation.

The reference model given by the ITU-T and ATM Forum for UPC and NPC is the Generic Cell Rate Algorithm ( GCRA ), which is a version of the leaky bucket algorithm.

Today, nearly all commonly used video compression methods ( e. g., those in standards approved by the ITU-T or ISO ) apply a discrete cosine transform ( DCT ) for spatial redundancy reduction.

DTMF is standardized by ITU-T Recommendation Q. 23.

It was AT & T's registered trademark from September 4, 1962 to March 13, 1984, and is standardized by ITU-T Recommendation Q. 23.

* Open Document Architecture, a free and open international standard document file format maintained by the ITU-T to replace all proprietary document file formats.

There are several indicators of fax capabilities: Group, class, data transmission rate, and conformance with ITU-T ( formerly CCITT ) recommendations.

ITU-T Recommendations T. 2 and T. 3 were withdrawn as obsolete in July 1996.

* Group 1 faxes conform to the ITU-T Recommendation T. 2.

* Group 2 faxes conform to the ITU-T Recommendations T. 30 and T. 3.

* Group 3 faxes conform to the ITU-T Recommendations T. 30 and T. 4.

* Group 4 faxes conform to the ITU-T Recommendations T. 563, T. 503, T. 521, T. 6, T. 62, T. 70, T. 72, T. 411 to T. 417.

Another example of a data link layer which is split between LLC ( for flow and error control ) and MAC ( for multiple access ) is the ITU-T G. hn standard, which provides high-speed local area networking over existing home wiring ( power lines, phone lines and coaxial cables ).

One example is the ITU-T G. hn standard, which provides a way to create a high-speed ( up to 1 Gigabit / s ) local area network using existing home wiring ( including power lines, but also phone lines and coaxial cables ).

In the ITU-T G. hn standard, which provides a way to create a high-speed ( up to 1 Gigabit / s ) local area network using existing home wiring ( power lines, phone lines and coaxial cables ), the data link layer is divided into three sub-layers ( application protocol convergence, logical link control and medium access control ).

* In March 2009, HomePNA announced a liaison agreement with the HomeGrid Forum to promote the ITU-T G. hn wired home networking standard.

The desire for High definition ( HD ) content has led the industry to develop a number of technologies, such as WirelessHD or ITU-T G. hn, which are optimized for distribution of HD content between CE devices in a home.

* HomeGrid Forum responsible for marketing and certifying ITU-T G. hn technology and products

Other companies and organizations back different specifications for power line home networking and these include the Universal Powerline Association, the HD-PLC Alliance and the ITU-T ’ s G. hn specification.

On December 2008, the ITU-T adopted Recommendation G. hn / G. 9960 as a standard for high-speed powerline, coax and phoneline communications.

NIST has included IEEE 1901, HomePlug AV and ITU-T G. hn as " Additional Standards Identified by NIST Subject to Further Review " for the Smart grid in the United States.

* ITU-T G. hn, a home network using existing home wiring ( power lines, phone lines and coaxial cables )

One example of this is the use of Contention-Free Transmission Opportunities ( CFTXOPs ) in the ITU-T G. hn standard, which provides high-speed ( up to 1 Gbit / s ) Local area networking over existing home wires ( power lines, phone lines and coaxial cables ).

In 2008, LDPC beat convolutional turbo codes as the FEC scheme for the ITU-T G. hn standard.

* G. hn / G. 9960 ( ITU-T Standard for networking over power lines, phone lines and coaxial cable )

* Medium Independent Interface, in the ITU-T G. hn standard for high-speed networking over home wires