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| ;DSLAM | | ;DSLAM |
| :Digital Subscriber Line Access Multiplexer | | :Digital Subscriber Line Access Multiplexer |
| + | |
| + | ;DSP |
| + | :Digital Signal Processor |
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| ;DTLS | | ;DTLS |
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| ;DTX | | ;DTX |
− | :Discontinuous Transmission - stops transmitting completely when silence is detected | + | :Discontinuous Transmission is an audio codec feature that stops transmitting completely when silence is detected to save bandwidth (and thus traffic). |
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| ;DUNDi | | ;DUNDi |
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| ;IPP | | ;IPP |
− | :Integrated Performance Primitive by Intel http://trac.pjsip.org/repos/wiki/Intel_IPP_Codecs | + | :Integrated Performance Primitive [http://trac.pjsip.org/repos/wiki/Intel_IPP_Codecs by Intel] |
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| ;ISN | | ;ISN |
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| ;IVR | | ;IVR |
− | :Interactive Voice Response - An automated voice system that allows callers to voice navigate ... | + | :Interactive Voice Response - An automated voice system that allows callers to voice navigate. |
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| ;LFI | | ;LFI |
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| ;MOS | | ;MOS |
− | :Mean Opinion Score: Subjektive Audio-Quali-Einschätzung von signif. vielen Leuten, Ergebnis 1...5. | + | :Mean Opinion Score: Subjektive Audio-Quali-Einschätzung von signif. vielen Leuten, Ergebnis im Bereich 1...5. |
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| ;MSD | | ;MSD |
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| ;MWI | | ;MWI |
− | :https://en.wikipedia.org/wiki/Message-waiting_indicator | + | :[https://en.wikipedia.org/wiki/Message-waiting_indicator Message Waiting Indicator] |
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| ;NANP | | ;NANP |
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| ;OPUS | | ;OPUS |
− | :Audio-Codec: https://de.wikipedia.org/wiki/Opus_(Audioformat) | + | :[https://de.wikipedia.org/wiki/Opus_(Audioformat) Der Rockstar unter den Audio-Codecs]. Der hat alle guten Features und ist dazu noch frei von Patenten. Den will man haben -- leider ist der aber (noch) nicht überall implementiert. Z.B. kann ein Snom-Tischtelefon kein Opus. Aber die Soft-Phones können Opus. |
| | | |
| ;OSP | | ;OSP |
− | :https://en.wikipedia.org/wiki/Open_Settlement_Protocol | + | :[https://en.wikipedia.org/wiki/Open_Settlement_Protocol Open Settlement Protocol] |
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| ;OSS | | ;OSS |
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| ;PCMA | | ;PCMA |
− | :Audio-Codec: https://en.wikipedia.org/wiki/A-law_algorithm | + | :[https://en.wikipedia.org/wiki/A-law_algorithm Audio-Codec] |
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| ;PCMU | | ;PCMU |
− | :Audio-Codec: https://en.wikipedia.org/wiki/Μ-law_algorithm | + | :[https://en.wikipedia.org/wiki/Μ-law_algorithm Audio-Codec] |
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| ;PHN | | ;PHN |
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| ;PRI ISDN | | ;PRI ISDN |
− | :https://en.wikipedia.org/wiki/Primary_Rate_Interface (T1, E1, J1), 24 Channels (Primär-Multiplex) | + | :[https://en.wikipedia.org/wiki/Primary_Rate_Interface Primär-Multiplex-Anschluß] (T1, E1, J1), 24 Channels |
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| ;RDOFF | | ;RDOFF |
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| ;VAD | | ;VAD |
| :Voice Activity Detection - Reduces Bitrate when no Voice is detected | | :Voice Activity Detection - Reduces Bitrate when no Voice is detected |
| + | |
| + | ;VBR |
| + | :Variable Bitrate Operation is an audio codec feature. |
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| ;VIP | | ;VIP |