Want to know how VoIP works? Protocols, codecs, and more
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2006-07-28 |
| This article discusses the basics of packetisation, network latency and bandwidth, transport and media protocols, and speech and video codecs. |
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| Want to know how VoIP works? Protocols, codecs, and more
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2006-07-28 |
| This article discusses the basics of packetisation, network latency and bandwidth, transport and media protocols, and speech and video codecs. |
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| Deploy VoIP at the source
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2006-07-11 |
| This article shows how to implement VoIP at the source |
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| Voice over IP -- The basics
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2006-06-21 |
| Voice over IP (VoIP) does not refer to a single service but encompasses an entire collection of services that can fill the phone service needs of many different residential and business customers |
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| Implement maximum security for VoIP apps
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2006-04-05 |
| Data-centric and time-consuming Internet security is insufficient to handle security threats looming in the background for VoIP. This article is a primer that discusses what exists, how to harness it and how to approach implementation—down to the microsecond |
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| RISC/DSP convergence meets VoWi-Fi requirements
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2006-01-16 |
| Embedded RISC processors with DSP capabilities add device functionalities with minimal impact on power. |
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| Designing low-cost VoIP videophones
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2005-11-01 |
| By coupling soft-DSP VoIP techniques with hardware-accelerated video encoding, video telephony can finally fulfill its mass-market potential |
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| Voice quality measurement: Understanding VoIP
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2005-10-03 |
| Network engineers need to understand call-quality measurement techniques to successfully diagnose and manage VoIP problems |
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| Power over Ethernet considerations for VoIP networks
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2005-09-26 |
| This article provides a list of design considerations ranging from latency and performance expectations to network security, which comes with developing VoIP networking equipment |
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| Power management silicon in PoE apps
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2005-04-18 |
| Power over Ethernet is a radical technology that is changing the way appliances are powered. Read on |
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| Audio requirements in digital telephony
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2005-03-01 |
| Digital telephony applications may boost the campaign for the VoIP market |
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| Tackling push-to-talk challenges in handsets
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2005-01-17 |
| As the available bandwidth for cellular devices increases with 2.5G and 3G wireless networks, the market potential for packet-based applications such as PoC is expected to develop rapidly. |
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| Timing is everything for VoIP success
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2005-01-03 |
| The only way for VoIP to succeed is to have the right timing--not market timing, but synchronized timing |
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| Solving Bluetooth, Wi-Fi coexistence challenges
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2004-12-16 |
| Here are design practices and coordination mechanisms to ensure interoperability in co-located Bluetooth and WLAN devices. |
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| Embedded VoIP implementations using SIP
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2004-09-16 |
| Broadband adoption has laid the pavement for mass-market VoIP implementation. Find out the advances that have made 2004 the year of VoIP |
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| Combined communication
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2004-02-16 |
| New applications for existing Wi-Fi technology are taking hold in the form of wireless data connectivity for PDAs, MP3 players and other portable consumer apps. |
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| What does a VDSL modem consist of?
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2004-02-02 |
| With the tremendous market potential of VDSL, a close examination of VDSL technical solutions would seem in order. |
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| Stretch TDM network to meet next-gen needs
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2004-01-16 |
| Time-slot interchangers have morphed into a vital, low-cost means of extending TDM networks to meet increasing performance demands. |
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| Optimizing the RISC/DSP combo for voice over IP
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2003-11-03 |
| Extensible architectures are a way to combine RISC and DSPs, but a poor implementation can negatively affect cost and execution speed. |
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| Selecting the best voice over packet protocol
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2003-05-16 |
| In the near future, VoIP deployment rate will overtake its VoATM counterparts and will eventually dominate and possess the entire VoP market |
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| Simplifying adaptive filter design in echo cancellers
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2003-04-01 |
| Traditionally,echocancellation |
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| Processor task segregation conquers Voice over IP
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2002-10-16 |
| To optimize the transmission of voice traffic over VoIP, packet processing should be relegated to NPUs and not on DSPs |
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| Suppressing errors in W-CDMA mobile devices
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2002-01-01 |
| This technical article describes the advantages of the W-CDMA specification that is capable of offering wireless Internet access with voice and data capabilities for handset designs. |
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| HomePlug brings cost-effective power line networking
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2001-12-16 |
| This article describes how Ethernet-class networks over standard home power lines are advancing in the industry due entirely to the prevalent presence of ASIC-based signal processors. |
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| Voice portals a stepping stone in the Internet convergence
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2001-10-01 |
| Voice portals seamlessly provide services once relegated only to common Web browsers, and they do it with the most natural user interface—the human voice. |
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| Turnkey enterprise IP phone reference design solutions
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2001-08-09 |
| This conference technical paper presents shared engineering experiences on IP phone reference design and its importance to modern design engineers. |
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| Voice Quality (VQ) in converging telephony and IP networks
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2001-08-09 |
| This conference technical paper discusses factors that affect voice quality, as well as network impairments and their causes in a converged telephony and Internet protocol (IP) network, all from the perspective of the quality of the analog voice signal. |
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| Constructing H.323 stacks for VoIP designs
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2001-07-01 |
| Developing an H.323 stack? This article shows what is necessary to build an application using a primitive-based interface and an alternative, simplistic interface. |
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| Korean engineers seek fulfillment through change
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2001-07-01 |
| Changing careers has now become a trend for Korean engineers wanting to achieve professional growth and better compensation packages. |
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| Optimizing DSPs for wireless world
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2001-04-15 |
| Complexities in next-generation requirements is taxing the capabilities of traditional DSP technology and design methodologies, causing a need for industry business models to be drastically redefined. |
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Strange modes of transport and other "stuff"
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