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The introduction of High Definition TV and multiple simultaneous video streams per home raise new challenges for IPTV service providers. End users may suffer a degraded quality of experience if no specific action is taken. Visual distortions may occur frequently and the time to switch channels may increase to unacceptable levels. In addition to the risk of losing customers, these problems will increase the number of calls to customer support centers and the associated costs. The Alcatel-Lucent 5910 VSA reduces channel change time from up to four seconds to one second or less. Channel change time can be achieved with minimum additional bandwidth requirements on the user connection.
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