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Ensuring voicemail delivery
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Patent number 8,897,754
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Issue date Nov 25, 2014
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Sprint Communications Company L.P.
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Piyush Upadhyay
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Multiple cookie handling
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Patent number 8,281,021
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Issue date Oct 2, 2012
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Sprint Communications Company L.P.
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Brian N. Smith
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Multiple cookie handling
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Patent number 8,145,773
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Issue date Mar 27, 2012
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Sprint Communications Company L.P.
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Brian N. Smith
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Multiple cookie handling
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Patent number 7,941,550
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Issue date May 10, 2011
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Sprint Communications Company L.P.
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Brian N. Smith
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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