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        <title>VoIP</title>
        <link>http://www.serviceassuranceblog.com/category/3.aspx</link>
        <description>VoIP</description>
        <language>en-US</language>
        <copyright>Brix Networks</copyright>
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            <title>Consumers Demand Quality Voice and Video</title>
            <link>http://serviceassuranceblog.com/archive/2008/02/20/Consumers-Demand-Quality-Voice-and-Video.aspx</link>
            <description>I ran across &lt;a href="http://www.networkworld.com/newsletters/branch/2008/0218branch1.html?nlhtbobp=ts_021908&amp;amp;nladname=021908branchofficebestpracticesal" target="_blank"&gt;Robin Gareiss’ article on bandwidth demands soaring in Network World&lt;/a&gt; today and thought I would discuss the consumer side of the problem as well.  &lt;br /&gt;
&lt;br /&gt;
She mentions that: &lt;br /&gt;
&lt;br /&gt;
&lt;div style="margin-left: 40px;"&gt;“[Network World] asked IT executives about bandwidth growth to the branch, and 98% of them said they had increased bandwidth in 2007 - on average by 80%. And for 2008, 90% expect to increase bandwidth by an average of 66%.”  &lt;br /&gt;
&lt;br /&gt;
&lt;/div&gt;
This is great information for branches, but how does that affect telecommuters and consumers?&lt;br /&gt;
&lt;br /&gt;
I personally work from home about 60% of the time and have found increasing problems getting into our corporate VPN.  Now, while our IT department may not appreciate me mentioning this, it is through no fault of their own.  This is due to the sheer number of users trying to access our internal resources from outside our firewall.  We’re simply oversubscribed.&lt;br /&gt;
&lt;br /&gt;
The coincidental thing is that I was simultaneously having a similar problem on my own home network.  Being a confessed geek, I do have a home network that consists of several computers, printers, and other devices that consume bandwidth.  I regularly move music and video across my network (I love my AppleTV) and find that accessing the Internet with my puny DSL line is simply killing it.  &lt;br /&gt;
&lt;br /&gt;
What did I do?  Well, like any good consumer, I went and bought the latest and greatest in consumer technology:  Gigabit Ethernet.  Yes, I have twelve ports of “Gig-E” in my home.  That really does nothing for my small DSL line, so the router has QoS to help.  I accelerated both web access and email (to make my wife happy).  This helped me tremendously, but I wondered what all the other “average” people would do in this situation.&lt;br /&gt;
&lt;br /&gt;
How will service providers handle the growing need for bandwidth due to increased data for applications like video over IP(my major downfall due to my rampant love of Itunes) and voice over IP?  I saw the problem on my own network and could handle my own prioritizations, but what of my friends and family?  I don’t think they’ll be so fortunate.  &lt;br /&gt;
&lt;br /&gt;
Service Providers:  Be warned, the killer apps are here and they are video and voice!  How will you respond?&lt;br /&gt;
&lt;br /&gt;
Philip Powell&lt;br /&gt;
Product Management&lt;br /&gt;
&lt;a title="Brix Networks" href="http://www.brixnet.com"&gt;Brix Networks&lt;/a&gt;&lt;img src="http://serviceassuranceblog.com/aggbug/54.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2008/02/20/Consumers-Demand-Quality-Voice-and-Video.aspx</guid>
            <pubDate>Wed, 20 Feb 2008 16:11:41 GMT</pubDate>
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            <title>The Quality Imperative - From Carrier Ethernet to VoIP and IPTV</title>
            <link>http://serviceassuranceblog.com/archive/2007/11/26/The-Quality-Imperative---From-Carrier-Ethernet-to-VoIP-and.aspx</link>
            <description>&lt;br /&gt;
Pulver Media has just created a new Web 2.0 community called &lt;a target="_blank" href="http://pulcom.ning.com/group/qualityofapplication/forum/topic/show?id=897424%3ATopic%3A7333"&gt;PulvermediaCommunity &lt;/a&gt;that is designed to bring the company and people who are involved in Pulver events together to discuss the future of the industry.  Carl Ford created this community on the social networking platform &lt;a target="_blank" href="http://www.ning.com"&gt;ning&lt;/a&gt; (&lt;a target="_blank" href="http://www.ning.com"&gt;www.ning.com&lt;/a&gt;).&lt;br /&gt;
&lt;br /&gt;
On the site, Carl started a discussion called "Is Ethernet our only landline future" which asks:&lt;br /&gt;
&lt;br /&gt;
&lt;div style="margin-left: 40px;"&gt;&lt;span style="font-weight: bold; font-style: italic;"&gt;With so many home and enterprise networks adopting WiFi, is it logical to expect that the future interface to fixed line network will be Ethernet?&lt;/span&gt;&lt;br /&gt;
&lt;/div&gt;
&lt;br /&gt;
In the discussion, he references a presentation from the Fall VON given by Charlie Baker, Director of Product Management at &lt;a href="http://www.brixnet.com" title="Brix Networks"&gt;Brix Networks&lt;/a&gt; that goes over the need for quality of service (QoS) to be implemented from the Ethernet core all the way through to advanced applications such as VoIP and IPTV.&lt;br /&gt;
&lt;br /&gt;
The &lt;a target="_blank" href="http://pulcom.ning.com/group/qualityofapplication/forum/topic/show?id=897424%3ATopic%3A7333"&gt;presentation is available on the site&lt;/a&gt;, but you'll need to register.  But don't worry... registration doesn't start a flood of spam messages to your email inbox.  And, there's some great information about assuring services from the core all the way down to the individual user.&lt;img src="http://serviceassuranceblog.com/aggbug/53.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/11/26/The-Quality-Imperative---From-Carrier-Ethernet-to-VoIP-and.aspx</guid>
            <pubDate>Mon, 26 Nov 2007 19:50:25 GMT</pubDate>
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            <title>Wireless Carriers Getting Out of the Network Business</title>
            <link>http://serviceassuranceblog.com/archive/2007/11/14/Wireless-Carriers-Getting-Out-of-the-Network-Business.aspx</link>
            <description>&lt;a href="http://www.flickr.com/photos/jm999uk/182322237/" title="photo sharing"&gt;&lt;img vspace="10" hspace="10" border="1" align="right" alt="" src="http://farm1.static.flickr.com/66/182322237_31c7e5cda9_m.jpg" style="border: 1px solid rgb(0, 0, 0);" /&gt;&lt;/a&gt;&lt;br /&gt;
During the recent &lt;a href="http://www.von.com/2007/boston/web/" target="_blank"&gt;Fall VON&lt;/a&gt; show in Boston, I was asked an interesting question while serving as a panelist on one of the panel discussions: "If you can help monitor the quality of a network, what advice do you have on building a high-quality network?"
&lt;p&gt;I thought of various ways to answer the question, and then I had a mini-revelation (at least for me): &lt;/p&gt;
&lt;div style="margin-left: 40px;"&gt;&lt;em&gt;Wireless network operators are actually getting out of the network business as their services evolve.&lt;/em&gt;&lt;/div&gt;
&lt;br /&gt;
&lt;p&gt;Peering aside, the outsourcing arrangements for long-haul transport -- Ethernet, microwave, or other -- are just the beginning. The real innovations are coming from the wireless carriers of the world as their services evolve and they realize that profits come from service differentiation and not providing the network.&lt;/p&gt;
&lt;p&gt;Wireless backhaul over Ethernet is all the rage, as wireless operators switch mobile traffic from their TDM backhaul networks to Ethernet networks. This switch involves replacing the T1 lines they are currently using to connect the Mobile Switching Centers (MSCs) to their cell towers. This switch to backhaul Ethernet delivers lower operating costs and the ability to quickly and easily add bandwidth on-demand for their revenue generating applications, like mobile video, mobile data, and VoIP. By getting out of the network business, wireless operators are truly concentrating on their network core and the radio connections needed to deliver next-gen services.&lt;/p&gt;
&lt;p&gt;Want further proof? Think about the recent picocell/wi-fi announcements from Sprint and T-Mobile. The T-Mobile &lt;a href="http://www.t-mobile.com/hotspotathome" target="_blank"&gt;HotSpot @Home&lt;/a&gt; service takes full advantage of wi-fi service whenever possible: your mobile phone will switch to your home broadband connection, a T-Mobile hotspot in a Starbucks, or any open hotspot. And Sprint's &lt;a href="http://www2.sprint.com/mr/news_dtl.do?id=18000" target="_blank"&gt;AIRAVE&lt;/a&gt; service takes a slightly different path, automatically connecting your mobile phone to the Sprint mobile service using your home broadband connection without switching the phone to the wi-fi network.&lt;/p&gt;
&lt;p&gt;What does this mean for the consumer? It means that a lot of these customers will be tempted to ditch their landline phones and have a single phone number via their mobile carrier. If their phones switch to their home broadband connection, the quality increases immensely over having to get their service from a distant cell tower. For example, I have trouble at home connecting to my Sprint service, but the AIRAVE service will allow me to have reliable access to my mobile service at home.&lt;/p&gt;
&lt;p&gt;For the mobile operators, however, this essentially removes the "controlled" world of Carrier Ethernet from the equation and introduces the wild and wooly Internet into the mix. Now, mobile carriers cannot enforce a Service Level Agreement (SLA) with the backhaul provider because they are not paying for backhaul services. Customers can connect to their mobile provider on any type of broadband connection, which means that customers will complain about voice quality to their mobile operator when, in reality, the operator doesn't have complete control of the quality of the connection. It's a good thing we've been trained to expect lower quality mobile phone calls these days because mobile operators will be at the mercy of broadband home network providers.&lt;/p&gt;
&lt;p&gt;In addition, the wi-max deployments in the last mile will bring even further confusion to the mobile service equation, as not all mobile operators will be managing wi-max deployments in their network. Some will outsource the entire wi-max operation and some will connect their wi-max extensions to their Ethernet backhaul connections and finally to an MPLS core. This combination of network layers introduces a number of complexities and interdependencies that increase the risk factors for delivering a quality user experience. &lt;/p&gt;
&lt;p&gt;In the end, wireless carriers are choosing to lose control of their network infrastructure to save on capital costs, and are now looking for creative ways to validate and troubleshoot their next-generation revenue services. Deploying additional layers of software and hardware, or rolling trucks to manage this environment, is highly impractical and cost-prohibitive. In response, operators and equipment vendors are developing new standards to measure and troubleshoot across these network domains and quickly trying to adapt to an unpredictable environment for mission-critical applications.&lt;/p&gt;
&lt;p&gt;Deploying end-to-end converged service solutions at strategic points throughout their network that can provide visibility of core transport, backhaul transport, and access availability is the best way to retain customers who have switched from their landlines to next-generation mobile services that take advantage of the cost savings of wireless Ethernet backhaul.&lt;/p&gt;
Charlie Baker&lt;br /&gt;
Director, Product Management&lt;br /&gt;
&lt;a href="http://www.brixnet.com/"&gt;Brix Networks&lt;/a&gt;&lt;img src="http://serviceassuranceblog.com/aggbug/52.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/11/14/Wireless-Carriers-Getting-Out-of-the-Network-Business.aspx</guid>
            <pubDate>Wed, 14 Nov 2007 15:44:44 GMT</pubDate>
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            <title>IPTV Will Require Creative Marketing</title>
            <link>http://serviceassuranceblog.com/archive/2007/09/05/IPTV-Will-Require-Creative-Marketing.aspx</link>
            <description>IPTV brings a host of benefits to service providers, including another competitive service offering to add their converged service bundles.  However, uptake for IPTV services in the United States has been slower than expected.&lt;br /&gt;
&lt;br /&gt;
So, IPTV service providers are starting to get creative.  There is a post on the &lt;a href="http://www.dailyiptv.com/about/" target="_blank"&gt;Daily IPTV blog&lt;/a&gt; by David Cotriss titled, "&lt;a href="http://www.dailyiptv.com/features/iptv-providers-freebies-062807/" target="_blank"&gt;Ice Cream Trucks, Freebies and... IPTV?&lt;/a&gt;" that discusses the innovative ways that IPTV service providers are trying to get the word out about their offerings.  Here's an excerpt from the blog posting about local guerrilla marketing using an ice cream truck:&lt;br /&gt;
&lt;br /&gt;
&lt;div style="margin-left: 40px;"&gt;“Because Verizon's and AT&amp;amp;T's services are still available in very limited areas, they're focusing on locally-targeted advertising and promotion,” said Len Feldman, director of IPTV analysis at Multimedia Research Group, Inc. “For example, in Connecticut, AT&amp;amp;T is using an ice cream truck that's equipped with a large flat-panel display to introduce U-Verse to potential customers.”&lt;br /&gt;
 &lt;br /&gt;
This is an example of innovative word of mouth at work. This gem comes via a story in the New England-based &lt;a target="_blank" href="http://www.courant.com/business/hc-attdownhome0613.artjun13,0,3179311.story?coll=hc-big-headlines-breaking" linkindex="22" set="yes"&gt;Hartford Courant&lt;/a&gt;, which explains that the truck circles “Little League fields, train stations and suburban cul-de-sacs” showing U-verse programming. AT&amp;amp;T is also using wine and cheese parties and movie nights, among other methods, to lure customers where service is available. There’s no indication of how effective these methods are so far.&lt;br /&gt;
&lt;br /&gt;
&lt;/div&gt;
This type of localized marketing can create a grass roots momentum shift for IPTV service providers, as customers in these communities see local involvement and a willingness to participate in the community.  In fact, sometimes the community will get involved if there is a local champion:&lt;br /&gt;
&lt;br /&gt;
&lt;div style="margin-left: 40px;"&gt;The most outrageous example, however, comes by way of the “Bobby Choice” campaign, in which a Norwalk, Connecticut man is using the fictional name Bobby Choice to campaign against Cablevision’s monopoly in the city, hoping to give residents more choice of cable providers.  His web site, &lt;a target="_blank" href="http://www.bobbychoice.com/" linkindex="23" set="yes"&gt;www.bobbychoice.com&lt;/a&gt;, documents his activities as he embarks on the campaign.  He has the backing of AT&amp;amp;T, and the campaign is aimed at generating buzz about U-verse.  While it’s unclear whether the campaign will extend beyond Norwalk, the man “Bobby Choice” received a year’s free subscription to U-verse as part of the campaign, and is now holding a fictional contest to award five other residents the same prize.&lt;br /&gt;
&lt;/div&gt;
&lt;div style="margin-left: 40px;"&gt;&lt;br /&gt;
&lt;/div&gt;
Part of the reason that IPTV providers are using these innovative tactics is the uphill battle they are waging against incumbent cable providers.  Digital cable quality is excellent, and subscribers are happy with their service.&lt;br /&gt;
&lt;br /&gt;
One way that IPTV can start to compete is offering bundles of converged services, which include IPTV as well as voice, data, and mobile services.  When bundled at a very competitive price, consumers are more willing to try new services in order to save money and simplify their billing.&lt;br /&gt;
&lt;br /&gt;
But in order to survive and retain new subscribers, these bundled services need to be solid - i.e. provide a quality customer experience.  And, they all need to deliver at the quality level of existing services.  The IPTV service needs to be at the same quality as existing digital cable, or customers will leave, often taking all of their service dollars with them.  &lt;br /&gt;
&lt;br /&gt;
Converged service assurance is now essential to competing for triple play and quad play dollars in an increasingly disruptive market.  When all of the elements of a successful converged service offering deliver a quality user experience, customers are happy and continue to subscribe month after month.&lt;img src="http://serviceassuranceblog.com/aggbug/51.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/09/05/IPTV-Will-Require-Creative-Marketing.aspx</guid>
            <pubDate>Wed, 05 Sep 2007 14:36:06 GMT</pubDate>
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            <title>Converged Service Assurance and the Skype Outage</title>
            <link>http://serviceassuranceblog.com/archive/2007/08/22/Converged-Service-Assurance-and-the-Skype-Outage.aspx</link>
            <description>&lt;br /&gt;
Recently, &lt;a href="http://www.tmcnet.com/tmcnet/richbio.htm" target="_blank"&gt;Rich Tehrani&lt;/a&gt; posted an &lt;a href="http://blog.tmcnet.com/blog/rich-tehrani/skype/what-we-learned-from-the-skype-outage.html" target="_blank"&gt;interesting article about the recent Skype service outage&lt;/a&gt; over at his &lt;a href="http://blog.tmcnet.com/blog/rich-tehrani/" target="_blank"&gt;VoIP Blog&lt;/a&gt;. For those who don't know, the &lt;a href="http://www.skype.com" target="_blank"&gt;Skype VoIP service&lt;/a&gt; was down late last week.  Skype, to it's credit, has gone on the record about &lt;a href="http://heartbeat.skype.com/2007/08/what_happened_on_august_16.html" target="_blank"&gt;what happened on August 16th to cause the outage&lt;/a&gt;.&lt;br /&gt;
&lt;br /&gt;
It turns out the outage was caused by a bug in Skype's peer-to-peer network resource allocation algorithm.  When a recent &lt;a href="http://heartbeat.skype.com/2007/08/the_microsoft_connection_explained.html" target="_blank"&gt;Windows patch was released by Microsoft&lt;/a&gt;, it caused millions of users to update their PCs and reboot, which rebooted their Skype software in the process.  This unexpected network load, coupled with the bug in their algorithm, caused the network to crash.  Skype, in no way, blames Microsoft for the issue, and claims to have the bug fixed to prevent further service disruptions of this type.&lt;br /&gt;
&lt;br /&gt;
In his VoIP Blog, Rich Tehrani makes some great points about ongoing testing and monitoring of your IP-based applications.  In the article, Rich states:&lt;br /&gt;
&lt;br /&gt;
&lt;div style="margin: 0in 0in 0pt 40px; font-style: italic;"&gt;
&lt;div style="margin: 0in 0in 0pt;"&gt;While some journalists have come to the conclusion that VoIP is no longer reliable because of this outage the reality is that a software bug stopped the network from functioning properly and this had nothing to do with the inherent reliability of VoIP.&lt;/div&gt;
&lt;div style="margin: 0in 0in 0pt;"&gt; &lt;/div&gt;
Still, when you leverage the benefits of IP communications you must also be aware of the responsibilities that come with the technology. Yes, you now have some responsibilities you may not have been aware of. Much the same way you now know to but a UPS on your e-mail server, you need to ensure you have adequate network management and security in place when you use VoIP on a regular basis basis.&lt;/div&gt;
&lt;div style="margin: 0in 0in 0pt 40px; font-style: italic;"&gt; &lt;/div&gt;
&lt;div style="margin: 0in 0in 0pt 40px; font-style: italic;"&gt;In other words, take this outage as a learning experience. Learn to test your VoIP network. Learn to monitor your IP communications network. Learn to have redundancy in your IP telephony network. It is far better to be prepared than to be left without your vital communications systems.&lt;/div&gt;
&lt;div style="margin: 0in 0in 0pt;"&gt; &lt;/div&gt;
With converged services like VoIP and IPTV, it's imperative to continuously monitor the health of the IP communications infrastructure, right down to the customer premise.  Continuous monitoring through passive testing, based on well-established thresholds for key performance metrics, will allow service providers to spot potential problems before they happen.  And, with active testing, problems can be pinpointed and service outages can be avoided.&lt;br /&gt;
&lt;br /&gt;
In the case of the recent Skype outage, a converged service assurance solution may not have been effective in preventing the service disruption, but there may have been some warning that the levels of service were degrading beyond usefulness.  This may have alerted the network engineering team sooner, and perhaps helped pinpoint where the issues were sooner.  &lt;br /&gt;
&lt;br /&gt;
This is a lot of speculation on our part, but more information when it comes to mission-critical services like VoIP is definitely better than less information.  As IP communications extends its reach into more and more organizations, service providers and enterprises alike need to ensure there are ways to monitor the health of their network and their applications.  A comprehensive, end-to-end converged service assurance solution is the only way to effectively ensure the uptime of these applications.&lt;br /&gt;
&lt;br /&gt;
You can check out &lt;a href="http://blog.tmcnet.com/blog/rich-tehrani/skype/what-we-learned-from-the-skype-outage.html" target="_blank"&gt;Rich's VoIP Blog and the article about the Skype outage here&lt;/a&gt;.&lt;img src="http://serviceassuranceblog.com/aggbug/50.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/08/22/Converged-Service-Assurance-and-the-Skype-Outage.aspx</guid>
            <pubDate>Wed, 22 Aug 2007 13:54:22 GMT</pubDate>
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            <title>U.S. Behind Europe in VoIP Adoption</title>
            <link>http://serviceassuranceblog.com/archive/2007/07/12/U.S.-Behind-Europe-in-VoIP-Adoption.aspx</link>
            <description>&lt;br /&gt;
&lt;span class="articleBody"&gt;&lt;span style="font-size: 8.5pt; color: black; font-family: Verdana;"&gt;According to research from In-Stat, the gap in VoIP adoption rates between the U.S. and Europe is growing.  According to In-Stat&lt;/span&gt;&lt;/span&gt;&lt;span style="font-size: 8.5pt;"&gt;&lt;font face="Verdana"&gt;, more than 14 million Europeans subscribed to VoIP services in 2006, with a total number of 19 million VoIP subscribers in Europe at the end of 2006.  The firm forecast the number of VoIP subscribers to nearly double to 34 million subscribers by the end of 2007.&lt;br /&gt;
&lt;br /&gt;
In contrast, there were only 4 million new VoIP subscribers added in the U.S. during 2006, with a total number of 10.6 million VoIP subscribers.  According to In-Stat, the number of VoIP subscribers is expected to grow by only 50% in the U.S., with a total of 15.9 million VoIP subscribers expected by year's end.&lt;br /&gt;
&lt;br /&gt;
A story &lt;a href="http://www.redherring.com/Article.aspx?a=22819&amp;amp;hed=U.S.+Lags+Europe+in+VoIP&amp;amp;sect;or=Industries&amp;amp;subsector=Communications" target="_blank"&gt;posted on the Red Herring web site&lt;/a&gt; cites Yankee Group analyst Zeus Kerravala as to the reasons for the lower adoption rates in the United States:&lt;br /&gt;
&lt;br /&gt;
&lt;/font&gt;&lt;/span&gt;
&lt;div style="margin-left: 40px;"&gt;&lt;span style="font-size: 8.5pt; font-style: italic;"&gt;&lt;font face="Verdana"&gt;"...demand for VoIP services was lower in the &lt;st1:country-region w:st="on"&gt;United States&lt;/st1:country-region&gt; than in Europe because traditional phone services are cheaper in the &lt;st1:country-region w:st="on"&gt;&lt;st1:place w:st="on"&gt;U.S.&lt;/st1:place&gt;&lt;/st1:country-region&gt; and Americans also make far fewer international calls. &lt;o:p&gt;&lt;/o:p&gt;&lt;/font&gt;&lt;/span&gt;&lt;/div&gt;
&lt;p style="margin: 0in 0in 0pt 40px; font-style: italic;" class="NoSpacing"&gt;&lt;span style="font-size: 8.5pt;"&gt;&lt;o:p&gt;&lt;font face="Verdana"&gt; &lt;/font&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="margin: 0in 0in 0pt 40px;" class="NoSpacing"&gt;&lt;span style="font-size: 8.5pt;"&gt;&lt;font face="Verdana"&gt;&lt;span style="font-style: italic;"&gt;“Where the value proposition for VoIP is simply cost savings, you are never going to see the kind of adoption rates in North America that you see in &lt;/span&gt;&lt;st1:place w:st="on" style="font-style: italic;"&gt;Europe&lt;/st1:place&gt;&lt;span style="font-style: italic;"&gt;,” Mr. Kerravala said.&lt;/span&gt;&lt;span style=""&gt;&lt;span style="font-style: italic;"&gt; &lt;/span&gt;&lt;br /&gt;
&lt;/span&gt;&lt;/font&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="margin: 0in 0in 0pt;" class="NoSpacing"&gt;&lt;span style="font-size: 8.5pt;"&gt;&lt;font face="Verdana"&gt;&lt;span style=""&gt;&lt;/span&gt;&lt;/font&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="margin: 0in 0in 0pt;" class="NoSpacing"&gt;&lt;span style="font-size: 8.5pt;"&gt;&lt;font face="Verdana"&gt;&lt;span style=""&gt;As carriers continue to see decreased revenue from standard telephone offerings, converged services like VoIP and IPTV will provide a path to greater revenue and profit margins.  And, service assurance will provide a method for reducing operational custs and customer churn.&lt;/span&gt;&lt;/font&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="margin: 0in 0in 0pt;" class="NoSpacing"&gt;&lt;span style="font-size: 8.5pt;"&gt;&lt;font face="Verdana"&gt;&lt;span style=""&gt;&lt;/span&gt;&lt;/font&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="margin: 0in 0in 0pt;" class="NoSpacing"&gt;&lt;span style="font-size: 8.5pt;"&gt;&lt;font face="Verdana"&gt;&lt;span style=""&gt;To read the complete story, please &lt;a href="http://www.redherring.com/Article.aspx?a=22819&amp;amp;hed=U.S.+Lags+Europe+in+VoIP&amp;amp;sect;or=Industries&amp;amp;subsector=Communications" target="_blank"&gt;visit the Red Herring web site&lt;/a&gt;.&lt;/span&gt;&lt;/font&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style="margin: 0in 0in 0pt;" class="NoSpacing"&gt;&lt;span style="font-size: 8.5pt;"&gt;&lt;font face="Verdana"&gt;&lt;span style=""&gt;&lt;br /&gt;
&lt;/span&gt;&lt;/font&gt;&lt;/span&gt;&lt;/p&gt;
&lt;br /&gt;
&lt;span style="font-size: 8.5pt;"&gt;&lt;font face="Verdana"&gt;&lt;br /&gt;
&lt;/font&gt;&lt;/span&gt;&lt;img src="http://serviceassuranceblog.com/aggbug/49.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/07/12/U.S.-Behind-Europe-in-VoIP-Adoption.aspx</guid>
            <pubDate>Thu, 12 Jul 2007 15:20:59 GMT</pubDate>
            <wfw:comment>http://serviceassuranceblog.com/comments/49.aspx</wfw:comment>
            <comments>http://serviceassuranceblog.com/archive/2007/07/12/U.S.-Behind-Europe-in-VoIP-Adoption.aspx#feedback</comments>
            <wfw:commentRss>http://serviceassuranceblog.com/comments/commentRss/49.aspx</wfw:commentRss>
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        </item>
        <item>
            <title>Service Quality and the Telcos: Why Good Enough Isn't Good Enough</title>
            <link>http://serviceassuranceblog.com/archive/2007/06/26/Service-Quality-and-the-Telcos-Why-Good-Enough-Isnt-Good.aspx</link>
            <description>&lt;br /&gt;
Dr. Matthew Lucas &lt;a href="http://www.billingworld.com/secondary.cfm?page=detail&amp;amp;archiveId=7895" target="_blank"&gt;posted this editorial in the July issue of &lt;span style="font-style: italic;"&gt;Billing World and OSS Today&lt;/span&gt;&lt;/a&gt; magazine.  The editorial gives Dr. Lucas' thoughts on service quality and why telcos must go beyond the "good enough" mentality that pervades Web 2.0 applications.  In this editorial, Dr. Lucas gives his Top 10 reasons why compromising quality is a bad idea for telcos rolling out new IP-based services.&lt;br /&gt;
&lt;br /&gt;
Here is a summary of the Top 10 reasons:&lt;br /&gt;
&lt;ol&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;Service providers aren’t Web 2.0 companies&lt;/span&gt; - Most Web 2.0 companies make money from advertising - telcos require paying customers.&lt;br /&gt;
    &lt;/li&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;New service adoption&lt;/span&gt; - Customers are willing to give a new service one or two chances, but three strikes and you're out.&lt;strong&gt; &lt;/strong&gt;&lt;/li&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;Margins collapse&lt;/span&gt; - Support calls cost $6 - $22 per call and truck rolls average $200, killing already tight margins. &lt;/li&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;Productivity applications will fail&lt;/span&gt; - Productivity applications - email, web access, etc. - that are not integrated properly will fail and cause a poor customer experience.&lt;strong&gt; &lt;/strong&gt;&lt;/li&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;Entertainment services will fail &lt;/span&gt;- Unless telcos manage the rollout of entertainment services properly - with good quality - these services will fail. &lt;/li&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;IPTV will fail&lt;/span&gt; - Television service is extremely sensitive to quality, and IPTV requires a service quality framework before rollout or customers will leave. &lt;/li&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;Churn &lt;/span&gt;- The lower the quality of a service, the higher the churn. &lt;/li&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;Confidence erosion&lt;/span&gt; - Poor quality erodes confidence in not only the new service, but your entire brand.&lt;br /&gt;
    &lt;/li&gt;
    &lt;li&gt;Quality commands a premium - Companies that can deliver quality (like Apple) can demand a premium price for their products and services. &lt;/li&gt;
    &lt;li&gt;&lt;span style="font-weight: bold;"&gt;Political capital&lt;/span&gt; -Politicians trust telcos, but rolling out services with poor quality will cause politicians to lose confidence in the telcos.&lt;br /&gt;
    &lt;/li&gt;
&lt;/ol&gt;
Dr. Lucas concludes his editorial with this:&lt;br /&gt;
&lt;br /&gt;
&lt;div style="margin-left: 40px; font-style: italic;"&gt;There is no question that telcos have to get more aggressive rolling out a broad spectrum of new service, and do so at a lower cost and very quickly. That is what IMS and SDPs are all about, and one reason why OSS/BSSs are so important. &lt;br /&gt;
&lt;br /&gt;
In my opinion, though, innovation and speed should not come at the expense of quality. We should not aspire to become a dot.com industry where companies come and go looking for the short buck. If anything, the telecom service provider community should be putting service quality first and investing in quality user experience in every possible way—network, care, billing, applications, devices and services.&lt;br /&gt;
&lt;/div&gt;
&lt;div style="margin-left: 40px; font-style: italic;"&gt; &lt;/div&gt;
Here at &lt;a title="Brix Networks" href="http://www.brixnet.com"&gt;Brix Networks&lt;/a&gt;, we couldn't agree more with Dr. Lucas.  Over the past 12 months, activities around IPTV and mobile services has taken a leap from trial deployments to staged roll-outs to thousands of paying customers.  And as the competition increases, service quality will be the deciding factor in retaining customers and selling bundled services over the long term.&lt;br /&gt;
&lt;br /&gt;
To get Dr. Lucas' full explanation for his Top 10 reasons telcos need to roll out new services with quality from the beginning, visit the &lt;a href="http://www.billingworld.com/secondary.cfm?page=detail&amp;amp;archiveId=7895" target="_blank"&gt;article on the Billing World and OSS Today&lt;/a&gt; web site.&lt;img src="http://serviceassuranceblog.com/aggbug/47.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/06/26/Service-Quality-and-the-Telcos-Why-Good-Enough-Isnt-Good.aspx</guid>
            <pubDate>Tue, 26 Jun 2007 14:52:46 GMT</pubDate>
            <wfw:comment>http://serviceassuranceblog.com/comments/47.aspx</wfw:comment>
            <comments>http://serviceassuranceblog.com/archive/2007/06/26/Service-Quality-and-the-Telcos-Why-Good-Enough-Isnt-Good.aspx#feedback</comments>
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        <item>
            <title>Mobile Phone Quality… It’s Not Just the Handset</title>
            <link>http://serviceassuranceblog.com/archive/2007/05/29/Mobile-Phone-Quality-Its-Not-Just-the-Handset.aspx</link>
            <description>&lt;br /&gt;
As someone who needs to stay on top of the service assurance market, I need to keep up with the latest news.  As I cruise the major news sites, somewhere between the story of a bear vs moose tangle and the latest American Idol update, I came across a &lt;a target="_blank" href="http://www.foxnews.com/story/0,2933,269902,00.html"&gt;commentary about the quality of mobile phones&lt;/a&gt; from Sascha Segan at &lt;a target="_blank" href="http://www.pcmag.com"&gt;PC Magazine&lt;/a&gt;.  &lt;br /&gt;
&lt;br /&gt;
The article focuses on the sound quality of mobile phones as perceived by the user and takes the angle that the phone itself is to blame.  I'll come at the problem from a little different perspective - it takes a lot more than a high quality handset to make a high quality phone call.&lt;br /&gt;
&lt;br /&gt;
Making a phone call is not as easy as it used to be.  The old days of direct connections between two people on a pair of wires and always-available service are being replaced by IP-routed backhaul and service interruptions during power outages (check out the latest Verizon commercials about how reliable the old phone network is).  &lt;br /&gt;
&lt;br /&gt;
To further complicate the matter, we are untethering our devices from the network and relying on over the air radio transmissions to carry time-sensitive voice traffic.  Add to that the ability to &lt;br /&gt;
untether the microphone and speaker from the device via bluetooth, bandwidth competition from email and data downloads, and multiple hand-offs between network elements like routers, switches and gateways, and you have a lot of places in the transaction where voice quality can be degraded.  &lt;br /&gt;
&lt;br /&gt;
What is a network operator to do?  Well, they are promoting quality based on the percent of dropped calls, network reliability and the speed of the network.  One network operator is even publicizing the ability to kick the tires for 30 days.  But, at the end of the day, all of the network operators are all looking to provide the highest quality experience to a customer, no matter how that customer is accessing the network.  &lt;br /&gt;
&lt;br /&gt;
A lot of work is going on in the background to migrate infrastructure to higher bandwidth and higher speed connections to the base stations, create and enforce service level agreements (SLAs) between network providers and network peers, and subjectively measure the customer experience across the network.  &lt;br /&gt;
&lt;br /&gt;
Of course, voice is the most time-sensitive traffic carried across the network, and now there are a wide range of services being added to the mix.  Comcast and Sprint &lt;a target="_blank" href="http://www.comcast.com/corporate/wireless/default.html"&gt;recently announced Pivot&lt;/a&gt;, a new service that links your Sprint mobile phone to your Comcast digital services, such as high-speed Internet and mobile TV. And more converged services like these will continue to tax the bandwidth that network operators currently offer.  How these high bandwidth services directly affect the quality of voice is yet to be seen, but a significant investment is being made to architect a network that can handle converged services simultaneously.&lt;br /&gt;
&lt;br /&gt;
In the end, the network operators who take quality seriously (as well as customer satisfaction) are starting to roll out converged service assurance solutions for voice that address the user’s quality of experience two different ways - actively sending traffic between network segments to isolate disruptions before they affect the user's perceived voice quality, and passively assessing voice traffic across the network to discover quality trends before the problems become widespread.  &lt;br /&gt;
&lt;br /&gt;
The combination of active and passive testing provides a host of benefits, not the least of which include reduced truck rolls and tighter SLA enforcement.  Right now, not everyone is confident enough to drop their landline completely, but with great service assurance coverage, that day is rapidly approaching.&lt;br /&gt;
&lt;br /&gt;
Charlie Baker&lt;br /&gt;
Director, Product Management&lt;br /&gt;
&lt;a href="http://www.brixnet.com"&gt;Brix Networks&lt;/a&gt; &lt;br /&gt;&lt;img src="http://serviceassuranceblog.com/aggbug/45.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/05/29/Mobile-Phone-Quality-Its-Not-Just-the-Handset.aspx</guid>
            <pubDate>Tue, 29 May 2007 20:57:39 GMT</pubDate>
            <wfw:comment>http://serviceassuranceblog.com/comments/45.aspx</wfw:comment>
            <comments>http://serviceassuranceblog.com/archive/2007/05/29/Mobile-Phone-Quality-Its-Not-Just-the-Handset.aspx#feedback</comments>
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            <trackback:ping>http://serviceassuranceblog.com/services/trackbacks/45.aspx</trackback:ping>
        </item>
        <item>
            <title>Centralized Service, Distributed Operations</title>
            <link>http://serviceassuranceblog.com/archive/2007/05/25/Centralized-Service-Distributed-Operations.aspx</link>
            <description>&lt;br /&gt;
Hosted IP Centrex is an emerging business voice service that has been around for the last few years.  And it has taken the last few years to iron out the kinks to achieve business-level reliability and service quality.  However, we’re not at the end of the road just yet, as IP voice quality does not depend solely on technology, but must also overcome some organizational challenges as well.&lt;br /&gt;
&lt;br /&gt;
&lt;span style="font-weight: bold;"&gt;The Challenges&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
As enterprises deploy Voice over IP (VoIP) services using hosted IP Centrex, they expect the same voice quality and high level of reliability of their traditional PSTN phone service, not the “best effort” offerings from standalone VoIP providers like Skype.  Dropped calls, voice dropouts, and echo disrupt not only conversations, but also the business issues being discussed.  And, it’s just plain annoying.  Expectation is everything, and when you’re paying for telephony services, expectations are definitely high.  The bottom line is that it has to work AND match PSTN quality (which has at least a half century head start)&lt;br /&gt;
&lt;br /&gt;
There are a number of technology solutions that help address the challenges of delivering voice services over an IP network, including Voice Quality of Service (QoS) that prioritizes voice packets across the IP networks, bandwidth efficient voice codecs, and built-in echo cancellers in Media Gateways.  But in order to deliver quality IP voice services, an enterprises also needs to address quality from  an organizational perspective.&lt;br /&gt;
&lt;br /&gt;
Since Voice over IP is a  centralized service, different groups are involved by virtue of the infrastructure that supports the service across the network.  This is where challenges arise with differing lines of responsibility and views of service quality.  &lt;br /&gt;
&lt;br /&gt;
&lt;span style="font-weight: bold;"&gt;Customer Operations&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
The Customer Operations group typically activates, operates, and supports the customer’s network and services.  They receive the customer’s complaints of poor voice quality, and are charged with performing 1st and 2nd level troubleshooting.  The challenges they have that prolong the troubleshooting process include:&lt;br /&gt;
&lt;ul&gt;
    &lt;li&gt;Not enough training to characterize and identify types of voice quality issues
    &lt;ul&gt;
        &lt;li&gt;Insufficient info is logged that is useful for Level 2/3 troubleshooting&lt;/li&gt;
    &lt;/ul&gt;
    &lt;/li&gt;
    &lt;li&gt;Insufficient tools to perform pre-deployment testing, detect incorrect QoS configurations, or assess voice quality
    &lt;ul&gt;
        &lt;li&gt;Access to customer routers/switches is not enough to troubleshoot voice quality issues effectively&lt;/li&gt;
        &lt;li&gt;Difficulty in verifying that customers are really experiencing poor voice quality because of a network error and not because of a faulty headset&lt;/li&gt;
    &lt;/ul&gt;
    &lt;/li&gt;
    &lt;li&gt;Limited visibility of the IP Core and Hosted IP Centrex
    &lt;ul&gt;
        &lt;li&gt;QoS policies must be synched across the entire voice path&lt;/li&gt;
        &lt;li&gt;Inability to determine if the media gateways or PSTN are degrading Off-Net call quality&lt;/li&gt;
    &lt;/ul&gt;
    &lt;/li&gt;
&lt;/ul&gt;
&lt;span style="font-weight: bold;"&gt;IP Access/Core&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
The IP Access/Core group operates and manages the MPLS/VPN network that provides managed WAN services to its enterprise customers.  Their primary concern is network availability and throughput.  Voice is just another application that requires a separate Class of Service for each Edge and Core router.  Their typical challenges include:&lt;br /&gt;
&lt;ul&gt;
    &lt;li&gt;Other groups blame them for voice service outages, and they lack the tools to prove otherwise&lt;/li&gt;
    &lt;li&gt;Customers have large WAN pipes but still complain of poor voice quality&lt;/li&gt;
    &lt;li&gt;No visibility or control of the last mile WAN routers (which classify voice traffic) to ensure end-to-end QoS&lt;/li&gt;
&lt;/ul&gt;
&lt;span style="font-weight: bold;"&gt;Hosted IP Centrex&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
The Hosted IP Centrex group operates and manages the voice platform – the softswitch/application/network servers, session border controllers and media gateways -- and it is no surprise that the VoIP experts are from this group.  Voice quality issues are escalated to these experts, but their visibility is limited to the centralized platform (e.g. the performance of the media gateways).  Their typical challenges include:&lt;br /&gt;
&lt;ul&gt;
    &lt;li&gt;Voice quality issues that still persist even though the hosted platform is functioning properly&lt;/li&gt;
    &lt;li&gt;Lack of end-to-end visibility from the customer site for On-Net/Off-Net calls&lt;/li&gt;
    &lt;li&gt;VoIP deployment guidelines (QoS) are not followed or incorrectly implemented by Customer Operations &lt;/li&gt;
    &lt;li&gt;Insufficient info to adequately troubleshoot voice quality issues when escalated to Level 3.&lt;/li&gt;
&lt;/ul&gt;
&lt;span style="font-weight: bold;"&gt;The Way Forward&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
The underlying current here is that greater visibility is sorely needed across all of these operational groups; a unified, end-to-end view of IP Centrex service quality.  The same language must be understood and spoken across these groups; voice quality must be characterized, its degradation factors clearly identified, and the standards used to objectively measure it set in stone.&lt;br /&gt;
&lt;br /&gt;
One clear approach to achieve unification is through a common service assurance platform that is able to perform both end-to-end and segmented measurement of voice quality.  End-to-end measurements report the true customer experience, while a segmented approach provides quick isolation.&lt;br /&gt;
&lt;br /&gt;
Each operational group draws obvious benefits from a common service assurance platform:&lt;br /&gt;
&lt;ul&gt;
    &lt;li&gt;Customer Operations can pre-qualify customer networks well before the customer picks up a VoIP phone to make a call.  This in itself saves a lot of unnecessary pain.&lt;/li&gt;
    &lt;li&gt;IP Access/Core is assured that their MPLS/VPN network is engineered correctly and complies with the Key Performance Indicators (KPIs) for toll-grade voice transport&lt;/li&gt;
    &lt;li&gt;Hosted IP Centrex can operate and deploy a 24x7 platform that delivers toll-grade Off-Net call quality&lt;/li&gt;
&lt;/ul&gt;
When all three groups work together – and have a common set of tools for end-to-end service assurance for their network – they can fully support their customers and work together to diagnose and repair issues across the entire network.&lt;br /&gt;
&lt;br /&gt;
How Ming Low&lt;br /&gt;
Solution Architect&lt;br /&gt;
&lt;a href="http://www.brixnet.com"&gt;Brix Networks&lt;/a&gt;
&lt;br /&gt;&lt;br /&gt;&lt;img src="http://serviceassuranceblog.com/aggbug/44.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/05/25/Centralized-Service-Distributed-Operations.aspx</guid>
            <pubDate>Fri, 25 May 2007 18:00:41 GMT</pubDate>
            <wfw:comment>http://serviceassuranceblog.com/comments/44.aspx</wfw:comment>
            <comments>http://serviceassuranceblog.com/archive/2007/05/25/Centralized-Service-Distributed-Operations.aspx#feedback</comments>
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            <trackback:ping>http://serviceassuranceblog.com/services/trackbacks/44.aspx</trackback:ping>
        </item>
        <item>
            <title>Voice over IP Endpoint Monitoring Woes</title>
            <link>http://serviceassuranceblog.com/archive/2007/05/15/Voice-over-IP-Endpoint-Monitoring-Woes.aspx</link>
            <description>&lt;br /&gt;
SS7, TDM, and IP Signaling monitoring systems have existed for quite some time.  The problem with these systems has always been that they provided no insight into the voice quality of the call, especially during compression or transcoding.  Often times, average call lengths were used as a determinant for problems in the network.  The thinking was if there were a series of very short calls, there must be a problem.&lt;br /&gt;
&lt;br /&gt;
Many different standards exist to monitor the quality of calls, but these are most commonly either a simulation of a users’ call, placing an agent on a users’ telephone/telephone adapter, or, more recently, placing a device in the provider’s network and “listening” to the quality of users’ calls.&lt;br /&gt;
&lt;br /&gt;
Actively simulating users calls provides an excellent correlation to empirical evidence of calls.  PESQ provides such a methodology.  Simulation using PESQ, of course, is quite expensive (due to the patents being held by very few companies) and doesn’t provide actual users’ experience, but is an excellent substitute in the absence of calls and actual call quality.&lt;br /&gt;
&lt;br /&gt;
Placing an agent on a users’ telephone or telephone adapter is an excellent idea, in theory.  It however, suffers from a few problems:&lt;br /&gt;
&lt;ol&gt;
    &lt;li&gt;It typically requires CPU and memory where there is already a shortage&lt;/li&gt;
    &lt;li&gt;It is typically a costly measure.  Onerous licensing agreements for measuring voice quality prevent telephone and telephone manufacturers from adopting such technology&lt;/li&gt;
    &lt;li&gt;MOS just isn’t enough.  MOS is a great indicator of a problem, but the underlying metrics that make up MOS are the real keys to unlocking users’ problems. &lt;/li&gt;
&lt;/ol&gt;
Placing a device in the provider’s network has always been the preferred method, but it too suffers from issues:&lt;br /&gt;
&lt;ol&gt;
    &lt;li&gt;It typically provides an isolated view of voice quality.&lt;/li&gt;
    &lt;li&gt;Using the methodology above can be a costly affair.  Placing many devices in the path of a call may be economically unfeasible.&lt;/li&gt;
    &lt;li&gt;Where do you place devices to passively listen to all bearer traffic?&lt;/li&gt;
&lt;/ol&gt;
Enter a new generation of technology.  Thanks to pioneers like Alan Johnston and Texas Instruments, the problems of passively listening to the quality of users’ quality may be a thing of the past.  Alan Johnston and a few others introduced a &lt;a target="_blank" href="http://www.ietf.org/internet-drafts/draft-ietf-sipping-rtcp-summary-02.txt"&gt;draft in the IETF&lt;/a&gt; that provides the ability of redirecting voice quality records to a central monitoring point via the SIP NOTIFY method.  This eliminates the issue of having to be in the line of bearer traffic.  &lt;br /&gt;
&lt;br /&gt;
Texas Instruments has taken the SIP NOTIFY method one step further and actually &lt;a target="_blank" href="http://focus.ti.com/docs/pr/pressrelease.jhtml?prelId=sc06166"&gt;embedded voice quality measurements in their Digital Signal Processors&lt;/a&gt;.  Phone, telephone adapter, session border controller, and voice gateway manufacturers can now use this technology to provide voice quality by simply enabling it on their DSP.  Many manufacturers have told their customers that providing voice quality is too “expensive” in terms of CPU and memory.  Now, it’s no longer a concern.  There is zero effect on the devices that use Texas Instruments digital signal processors.&lt;br /&gt;
&lt;br /&gt;
The ability to monitor actual user quality is extraordinarily exciting for consumers, enterprises, SMBs, and service providers.  Why?  Detailed service level agreements and actual user experience information are now available.  Service Providers, look to your manufacturers for these abilities.  Customers, demand better quality and visibility from your service provider.&lt;br /&gt;
&lt;br /&gt;
Philip Powell&lt;br /&gt;
Solutions Architect&lt;br /&gt;
&lt;a href="http://www.brixnet.com"&gt;Brix Networks&lt;/a&gt; &lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;img src="http://serviceassuranceblog.com/aggbug/42.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>Brix Networks</dc:creator>
            <guid>http://serviceassuranceblog.com/archive/2007/05/15/Voice-over-IP-Endpoint-Monitoring-Woes.aspx</guid>
            <pubDate>Tue, 15 May 2007 18:06:48 GMT</pubDate>
            <wfw:comment>http://serviceassuranceblog.com/comments/42.aspx</wfw:comment>
            <comments>http://serviceassuranceblog.com/archive/2007/05/15/Voice-over-IP-Endpoint-Monitoring-Woes.aspx#feedback</comments>
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