"I always voted at my party's call, and I never thought of thinking for myself at all."William Gilbert
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Conducting a VoIP Readiness Assessment of Your Corporate Network
2005 is predicted to be the year of voice over IP (VoIP) solutions for a growing number of corporate enterprises - both large and small. If you have been considering the benefits of implementing VoIP, you are certainly not alone. In its just-published ...
Security, Stability, and Interoperability Issues on VoIP Implementation
Now we have accepted that VoIP is no longer just a phone service, it has become feature rich as it merges with computer configurations. The VoIP's existence has changed considerably over the last few years, coupled with the availability of broadband ...
VoIP in the Home
VoIP is set to revolutionise home communications. With VoIP you can make telephone calls over your broadband connection for free! Well in some cases you can, in other cases you might need to pay a monthly subscription to a VoIP service provider. There are ...
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Voice over IP, or VoIP had become a buzzword in the past few years because it represents a more cost effective model for transmitting voice conversations than the old circuit switched networks. The existing telephone infrastructure consists of physical wires connecting circuit switches in which one telephone caller is connected directly to another through a switched network. This of the old switchboard operators in days of old, automated on a large scale.
The existing Internet infrastructure is far different than the circuit switched networks that carry most voice calls. The Internet carries packets of digital information data. These packets are switched and routed through the Internet from one destination to another.
The protocol that governs the Internet is called TCP/IP. It was born out of UNIX and became the de facto standard of Internet communications. Because of the ubiquitous nature of TCP/IP, it represents the obvious choice for use in digital voice communications. Since it using IP – the Internet Protocol, voice over IP is generally referred to as VoIP.
In the Internet world, pieces of data called IP packets are passed around. A good analogy for this is the post office. Each packet contains its destination, and the routers and switchers in the network forward the packets like sorters in the post office. A package at the post office will typically go from one postal sorting center to another, before arriving at the destination post office to be put on the appropriate mail trucks. Packets move around the Internet in the same way.
In VoIP, special receivers known as codecs compress and decompress digital data into the audio we here through a telephone handset. When you speak into a VoIP phone, the phone compresses your voice into digital data, which is then sent out over an IP network as a series of packets. The receiving end receives those packets, and reforms them into audio through the handset of the person you are speaking to.
In order for VoIP to work successfully, standards are necessary so that one phone can talk to another. The standard protocol used in VoIP today is SIP, or Session Initiation Protocol. This protocol contains a number of compression and communications standards and algorithms that VoIP phones must support. For years, SIP was in a battle with proprietary protocols like Cisco Skinny, and other standards like H.323 which is the dominant standard in IP videoconferencing. But ultimately SIP has prevailed.
Because the nature of VoIP is different than circuit switched networks, VoIP comes with a new set of issues. The most serious concern is latency. Latency is the amount of time it takes between when you say something, and when it is heard on the other end. If the network is too slow or busy, and the packets don't arrive on time or in order, the conversation will fall apart. Studies show that people find latencies exceeding .25 seconds to be too frustrating to use. Because of this, quality of service (QoS) is an essential portion of a VoIP network, as it guarantees that packets will be delivered with minimal interruption.
Because of the cost advantages of VoIP, it will be commonplace before too long. Don't be surprised when old phones go the way of vinyl records.
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 Streamcore Guarantees Success of Large VoIP Deployments, Offers Innovative Performance Cartography Based on Google Maps (Centre Daily Times)
Streamcore, the global provider of visibility and dynamic performance control solutions to manage application and voice over IP (VoIP) delivery over the WAN, today announced the release of its 5.2 software for its StreamGroomer appliances and centralized management. The new software offers enhanced capabilities for managing and measuring end users’ quality of experience at branch offices. “Good ...
Tpad Signs Mobile VoIP Affiliate Agreement with Nimbuzz (PRWeb via Yahoo! News)
Tpad, the global provider of residential and business VoIP phone services, today announced a new mobile VoIP service powered by the Nimbuzz mobile platform.
Gangguan Perkhidmatan VOIP (Flexicorp), MY015 dan Modul Selfcare yang berkaitan. (JARING)
1. Pengumuman ini ditujukan kepada Ahli JARING yang menggunakan perkhidmatan VOIP FlexiCall Corporate, MY015 dan Modul Selfcare yang berkaitan.
Streamcore Guarantees Success of Large VoIP Deployments, Offers Innovative Performance Cartography Based on Google Maps (Business Wire via Yahoo! Finance)
EMERYVILLE, Calif.----Streamcore, the global provider of visibility and dynamic performance control solutions to manage application and voice over IP delivery over the WAN, today announced the release of its 5.2 software for its StreamGroomer appliances and centralized management.
Bittorrent declares war on VoIP, gamers (The Register)
The next internet meltdown Gamers, VoIP and video conference users beware. The leading BitTorrent software authors have declared war on you - and any users wanting to wring high performance out of their networks. A key design change in the P2P application promises to make the headaches faced by ISPs so far look like a party game. So what's happened, and why does it matter?…
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