IPTV and IGMP on the edge
Jun 8, 2005 4:46 PM
Telecom carriers are competing with cable companies to deliver new IP video services, variously called IPTV or switched digital video (SDV). Many of these services will require multicasting, or sending a single IP stream to multiple destinations. In IP networks, Internet Group Multicast Protocol (IGMP) is the mechanism that enables multicasting and supports channel-change requests from individual viewers...
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New DSL technology drives triple-play opportunity
Jun 8, 2005 12:05 PM
For would-be triple play incumbent wireline operators, the growing maturity of technologies such as ADSL 2 and 2+ is very good news, as indeed is the availability of increasingly sophisticated, but lower cost home gateways and set-top boxes ...
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Applying WiMAX products to next-generation networks
Jun 2, 2005 12:03 PM
With the extensive application of data services, the evolution of existing networks to next-generation networks is becoming an increasingly important concern for operators. Here's how emerging WiMAX products fit in...
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Using MPLS and VPLS to deliver blended lifestyle services
May 26, 2005 12:51 PM
For carriers, convergence can mean combining voice, data and video portfolios in new ways to deliver higher-value services. Or it may involve consolidation of separate networks, such as data or voice, onto a common core, such as a multiprotocol label switching (MPLS) network...
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The IMS diet: Filling the appetite for multimedia services
May 25, 2005 6:01 PM
Consumers’ appetite for advanced, feature-rich communications applications has grown increasingly insatiable. The user’s diet has become one of increasingly rich mixed media: text messaging and mobile gaming with an extra portion of push-to-talk on the side. For today’s Epicureans, not only is better quality on the requirement list, but so are lower costs...
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Making IPTV work as a service and a business
May 23, 2005 5:04 PM
Content navigation, content billing and royalties: When handled properly, these three issues can help make an ITPV service successful, but when handled poorly they can potentially have serious repercussions for service providers...
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Fiber and copper: The lucrative middle path
May 23, 2005 4:44 PM
Like forgotten middle children, millions of distributed enterprise branch office sites, as well as small businesses, languish invisibly between the two beloved objects of emerging fiber access ardor: the large enterprise and the triple-play broadband residence...
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Hosted/managed services: A new model for today’s market
May 18, 2005 6:24 PM
With increasing network complexity, spiraling security issues, the constant demand for new services and pressure to maximize efficiency and cost effectiveness, taking advantage of managed and hosted services offerings from equipment vendors is beginning to gain traction in the market...
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The Ethernet services life cycle
May 17, 2005 6:19 PM
Everyone knows the benefits of Ethernet, which represents significant growth opportunities for service providers and potential productivity gains for customers. Yet in terms of wide scale deployments, Ethernet services are still in their infancy. This is due to the fact that Ethernet as a service is still very new and providers are trying to understand the market direction, the revenue returns and the long-term models...
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Ethernet: Beyond business services
May 17, 2005 6:04 PM
In the late ‘90s, as demand for broadband began to explode, many service providers found themselves turning to that enterprise juggernaut, Ethernet, to help them inexpensively deliver more bandwidth-rich, Layer 2 services. Service providers also sought Ethernet as a cost-effective means of aggregating their ATM traffic. There was just one catch: Ethernet technology wasn’t sophisticated enough to meet the demands of a carrier environment...
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SIPin’ up the home office
May 13, 2005 3:53 PM
There is much more service providers can offer the growing home office market...
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Multiple wireless access protocols: How to stay simply connected
May 13, 2005 3:08 PM
In the communications field, technology is beginning to live up to the dreams of yesteryear. While all communication technologies are making rapid advances, nowhere are the advances occurring more rapidly than in wireless communications...
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A new era in network security
May 13, 2005 1:34 PM
Service providers must do much more to protect their network elements under new national guidelines...
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