By Francisco J. Hens
“Triple Play”is a mixture of web entry, voice conversation (telephony), and leisure providers similar to IP tv and video on demand.
The erosion of the normal voice provider, including the ever-increasing pageant among businesses, is pushing the telecommunications in the direction of a massive shift in its company types. clients wish extra companies in a extra versatile manner. this day, this shift can in simple terms be conducted via delivering converged companies equipped round the web Protocol (IP). Triple Play, a package of voice, video, and information providers for residential clients, is the foundation of this new technique.
Hens and Caballero clarify how and why the telecommunications is dealing with this variation, how to find, enforce and supply those new prone, and describes the know-how in the back of the converged community. Triple Play analyses a few enterprise concepts to minimise expenditures, whereas migrating infrastructures and delivering new prone.
Triple Play:
- Describes the straight forward innovations of triple play provider provision and offers particular technical details to focus on key features.
- Discussed entry networks, delivery, signaling, provider definition and enterprise versions.
- Covers the newest thoughts in Triple Play companies reminiscent of Ethernet within the First Mile (EFM), VDSL2 (Very excessive pace DSL moment generation), pseudowires andMultiprotocol Label Switching (MPLS).
- Explores video options (encoding, IPTV, VoD) along transmission and switching applied sciences (Ethernet, DSL, PON, NG-SDH).
- Includes a bankruptcy on IP Multimedia Subsystem (IMS) and on fixed/mobile convergence.
Triple Play: construction the Converged community for IP, VoIP and IPTV offers choice makers, engineers, telecommunications operators, community gear brands, installers and IT managers with a radical knowing of the alterations of conventional voice provider and its influence upon the telecommunications industry.Content:
Chapter 1 enterprise thoughts (pages 1–29):
Chapter 2 IP Telephony (pages 31–49):
Chapter three Audiovisual prone (pages 51–99):
Chapter four Signalling (pages 101–139):
Chapter five IP Multicasting (pages 141–150):
Chapter 6 QoS in Packet Networks (pages 151–176):
Chapter 7 QoS Architectures (pages 177–201):
Chapter eight Broadband entry (pages 203–241):
Chapter nine Quadruple Play (pages 243–303):
Chapter 10 Carrier?Class Ethernet (pages 305–350):
Chapter eleven Next?Generation SDH/SONET (pages 351–376):
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Extra info for Triple Play: Building the Converged Network for IP, VoIP and IPTV
Sample text
The need for a dejittering buffer increases the over-all delay experienced by the voice samples. Larger buffers favour jitter absorption but they increase the end-to-end delay. This trade off between delay and jitter filtering capabilities of a VoIP receiver is an important fact in IP telephony. For non interactive applications such as IP radio there is no compromise and dejittering buffers can be larger without any noticeable effect experienced by the end user. 1 Coding of Voice Signals Transmission of digital voice signals involves at least two steps: 1.
1 Providers’ View The size of the broadcast and cable TV market has been calculated to be about 25% of the whole telecom business, and this is a good reason for telcos to go into this business (see Figure 1-9). But the provision of TV has a major impact on telecommunications architectures. Massive investments are required to transform legacy networks into multiservice platforms. This is the million dollar question. Will service providers get any benefits at all? Triple Play’s main message is ‘more services for less money’ (see Table 1-5).
The pulse code modulation (PCM) can be used to represent a voice signal by a sequence of ones and zeros. This fact is very important because, historically, PCM was the first modulation used in digital telephony. PCM signals are well suited to time division multiplexing (TDM). The first digital telephony systems, based on PCM and TDM, were introduced in the sixties. Currently, the world of telephony is facing a new revolution: deterministic TDM is being replaced by statistical TDM which is based on packet switching.