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| G.711 |
An audio compression standard used for digital telephones on a digital PBS/ISDN. G.711, encoded voice is already in the correct format for digital voice delivery in the PSTN or through PBXs. G.711 uses a bandwidth of 64Kbps. G.711-compliant devices can communicate with other G 7.11 devices, but not with G.723 devices. Described in the ITU-T standards in its G-series recommendations. |
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| G.723.1 |
Describes a compression technique that can be used for compressing speech or audio signal components at a very low bit rate as part of the H.324 family of standards. This code allows dissimilar communication devices to communicate with each other using a standardized communications protocol. Used for digital telephones on a digital PBX.ISDN that produces digital audio at either 6.4 or 5.3 Kbps. The higher bit rate provides a somewhat higher quality of sounds. The lower bit rate provides system designers with additional flexibility. Described in the ITU-T standard in its G-series recommendations. |
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| G.729 |
ITU-T’s standard voice algorithm. Describes the coding of encoding/decoding of speech at 8 Kbps using CS-ACELP methods. |
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| Gate |
An ACD routing division that allows contacts arriving on specific telephone trunks or certain transaction types to be answered by specific groups of employees. Also referred to as split or group. |
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| Gateway |
The point at which a circuit-switched call is encoded and repackaged into IP packets. A gateway is an optional element in an H.323 conference and bridges H.323 conferences to other networks, communications protocols, and multimedia formats. |
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| Grade of Service |
The definition of service on telecommunications transmission facilities. Grade of service is typically defined as a "P" factor - the probability of encountering a busy signal on a trunk or group of trunks. For example, a P01 grade of service means that one percent of calls will encounter a busy signal. |
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