Exact(2)
One area of growth is something Apple calls "Services", which generated nearly $6bn of revenue – that's bigger than the Mac and iPad.
The Landline segment includes fixed line, telephone cards, interconnects and international calls services.
Similar(6)
The bandwidth of these call services is usually fixed.
(2) Support of adaptive bandwidth for call services.
The durations of call services are exponentially distributed.
G.722.2 (AMR-wideband) can adapt to the bandwidth of voice call services while MDC can adapt to the bandwidth of video call services.
For example, G.722 can change the bandwidth of voice call services while Multiple Description Coding (MDC) can vary the bandwidth of video call services.
Mobile cellular systems can now support multiple call services, such as voice and video calls.
Related(1)
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