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Written by David Chambers
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Tuesday, 23 September 2008 |
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 Softbank Japan announced this week that it plans to launch a femtocell
product in January 2009 and has awarded a supply contract to NEC.
Unlike mainstream femtocell developments, this uses a different network
architecture with calls made and received using the SIP internet
protocol which is commonly used to handle Voice over IP (VoIP) calls
rather than the existing mobile network core networks via the Iu
interface. Why the different approach?
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Last Updated ( Wednesday, 24 September 2008 )
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Whilst some operators are trialling mainstream 3G HSPA femtocells and looking at a range of business cases, Verizon seem to be planning to follow Sprint by launching a 2G CDMA femtocell to solve localised coverage problems. They don't see the need for data offload at this stage and appear to be planning a voice only approach.
