| A wireless IP Phone can be described as a
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| | both WLAN and public wireless network.
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| sophisticated, next generation mobile IP
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| | Mobile PCs such as laptops and palmtops
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| communication device. The concept of
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| | can be carried anywhere and can run on
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| Wireless IP Phone originated due to the
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| | various applications but they lack the
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| spread of Wireless LAN (WLAN) in business
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| | compact portability of cellular phones.
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| organizations.
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| | Public wireless networks such as cellular
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| It integrates the regular IP phone with
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| | phones cover wide geographical areas but
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| wireless installations and facilitates
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| | have limited data bandwidth. Therefore,
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| parallel voice and data support to
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| | the new models of Wireless IP Phones are
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| enterprise desktops on the same wireless
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| | developed combining the open architecture
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| prop. The technology supports not just
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| | of laptops and the easy portability of
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| the standard packet-switch IP telephones
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| | cellular handset so that they can switch
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| but also the traditional circuit-switch
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| | to public wireless network after coming
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| PBX (Private Branch Exchange) interfaces.
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| | out of the purview of WLAN. There will
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| Primarily developed to be used within the
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| | not be any interruption in service during
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| offices, it combines the
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| | the switch.
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| cost-effectiveness of an IP Phone and the
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| | The Wireless IP Phone works on battery
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| convenience of a mobile phone.
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| | and needs to be charged just like a
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| Originally the wireless IP Phones were
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| | regular cellular phone. Older models
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| not intended to replace the traditional
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| | battery requires greater power; talk time
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| mobile phones but were meant to be used
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| | and stand by time are also lower than
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| exclusively within a restricted
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| | those offered by a regular cellular
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| environment like the premises of a
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| | phone. But the latest models claim to be
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| business organization or a house. The
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| | on par with regular cellular phones and
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| earlier models work only through WLAN
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| | offer similar features like caller ID,
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| which has limited geographic application.
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| | call hold and transfer, conference calls,
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| The range of operation, both indoor and
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| | selectable ring tones, phone book etc.
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| outdoor, of the phone would depend on the
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| | However, security is the major problem.
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| capacity of the hardware providing the
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| | Signals are broadcast over the air in the
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| wireless access and it goes without
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| | wireless system and can be easily
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| saying that performance would deteriorate
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| | intercepted by outsiders who are within
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| with distance.
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| | the range of reception. Wireless link
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| The latest models are designed to support
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| | must be secured to avoid such risks.
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