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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| 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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| 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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| VoIP platforms for the evolving residential gateway
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2007-08-23 |
| Residential VoIP gateways are becoming responsible for video and cellular traffic, security processing, and more. Here's how to design a platform that can handle these roles |
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| Solving the VoIP power supply problem
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2010-01-15 |
| A power supply for VoIP phones is extremely cost-sensitive, power-loss sensitive and needs reasonable cross regulation. The C'uk converter excels in this application |
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| Line echo canceller, DC offsets in VoIP
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2009-03-26 |
| Here's a comparison of the different methods for testing VoIP speech quality |
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| Keeping your VoIP up and running
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2008-06-19 |
| VoIP addresses many companies' needs for telephony. However, groundwork must be prepared to ensure VoIP applications are always working |
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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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| 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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| 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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| 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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| VoIP security: Scenarios, challenges, and countermeasures (2
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2007-02-02 |
| This article discusses vulnerabilities, challenges and countermeasures in securing a VoIP network from the application right down to the hardware |
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| Delivering low-cost, high-quality end-to-end VoIP services
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2006-12-13 |
| Delivering low-cost, high-quality VoIP services requires the ability to harness the IP network's efficiencies as well as a careful balance of intelligence between the handset and the network edge and core |
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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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| Next-gen VoIP and the role of DSP
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2008-11-25 |
| Learn how to choose a DSP platform that can meet the demands of high-definition voice applications. |
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| Wideband vs. narrowband VoIP codecs
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2008-11-21 |
| Here are factors to consider before switching to wideband voice such as trade-offs in both processing horsepower and the bandwidth. |
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| Implementing VoIP with software voice engines
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2007-12-19 |
| Using a software voice engine instead of an external DSP can significantly reduce the bill of materials. |
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| Learn about VoIP quality measurements
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2009-03-30 |
| Know and compare the testing methods to measure, monitor and analyse the speech quality of VoIP services |
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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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| Power considerations for VoIP
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2008-10-13 |
| With the adoption of PoE, there is a change in the way we think about powering network components. |
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| Next-generation VoIP and the role of DSP
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2007-06-11 |
| Emerging technologies such as high-definition voice are expanding the role of the IP phone. Here's how to choose a DSP platform that can keep up with the changes. |
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| Ensure successful VoWLAN: Know security in VoIP networks
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2008-08-28 |
| See how using flexible hardware accelerators accommodate changes in standards and the unchecked evolution of network threats. |
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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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| Building cost-effective VoIP solutions
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2007-06-16 |
| The article evaluates system hardware architecture options you can use to implement IP voice and video applications, including GPPs, processors with on-chip accelerators, or processors with discrete programmable coprocessors. |
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| Secure nextgen VoIP phones with 802.1x
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2009-07-01 |
| Know the value of 802.1x standard in authenticating and authorising physical connections to a network. |
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| VoIP quality issues: Jitter, delay, and echo (2
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2008-04-03 |
| There are two time-related issues that can adversely impact the quality of IP voice services: transit delay and jitter. These two issues are inextricably intertwined. |
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| Enable VoIP QoS from the design platform
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2008-11-25 |
| Read about several quality architecture issues related to IP networks, and existing circuit switched and cellular networks. |
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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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| Network talk: Voice over IP
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2000-08-05 |
| Voice over IP (VoIP) has a big place in the future of the Internet. This article tells you what software is required to support VoIP and how the system should be architected |
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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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Strange modes of transport and other "stuff"
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