Wireless Handset VoIP Client for Mobility
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Solution Overview
Problem
Peer-to-peer voice communication systems require a PC to be powered on and present to make or receive calls, limiting user mobility and energy efficiency.
Innovation Solution
A wireless handset with embedded client software and a radio communication device that enables VoIP calls without a PC, using a display and keyboard for contact management and call initiation, and a network element for packet data voice call establishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a PC is used to make or receive P2P voice calls, then call functionality is enabled, but user mobility is restricted and energy consumption increases due to the PC needing to remain powered on
Solution Approach 1:
The patent segments the P2P voice communication system into two independent components: a fixed PC-based client software that handles call management and contact information, and a portable wireless handset that handles actual voice communication. This segmentation allows the handset to operate independently without requiring the PC to remain powered on, thereby improving user mobility and reducing energy consumption while maintaining full call functionality.
2Ease of operation
If a PC is required for P2P voice communication, then call functionality is provided, but the system complexity increases and ease of operation decreases
Solution Approach 1:
The patent extracts the voice communication functionality from the PC environment and embeds it directly into a wireless handset. The handset contains a microprocessor with embedded client software that can independently establish and maintain P2P voice calls. This extraction eliminates the requirement for users to interact with a PC for voice calls, significantly improving ease of operation while the standardized integration reduces overall system complexity.
3Adaptability or versatility
If contact information is stored centrally on a PC, then contact management is enabled, but access to contacts is restricted when the PC is not present
Solution Approach 1:
The patent implements preliminary action by having the wireless handset download and store contact information from the PC-based client software during initial setup or synchronization. The handset maintains a local copy of the contact directory, enabling users to access and initiate calls to contacts anywhere within wireless network coverage, even when the PC is turned off or not present. This preliminary storage action ensures continuous contact information availability.
Data Source
AI summary
A wireless handset for use in a peer-to-peer voice communications system comprising: a display; a keyboard comprising multifunctional keys capable of entering numeric or alphabetic characters depending on a number of key presses, said keyboard being arranged to enter contact information into a user interface displayed on said display, select contacts on the user interface, and initiate a packet data voice call with a contact; a microprocessor arranged to execute embedded client software, wherein the client software is arranged to establish a packet data voice call over the network and encode speech information as individually addressed packets; and a radio communication device arranged to transmit said individually addressed packets as radio signals from said wireless handset to a network.