Multimedia Access Device for PSTN-Internet Voice Bridging
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Solution Overview
Problem
Current communication systems face challenges in facilitating seamless voice and data communication between disparate devices and service providers, particularly in bridging voice communications between traditional PSTN networks and data communication networks like the Internet, due to the lack of standard protocols for instant messaging and voice services, leading to cumbersome procedures and limited functionality.
Innovation Solution
A multimedia access device and system that enables voice communication sessions between endpoint devices using an instant messaging client, by emulating the instant messaging client for non-instant messaging based devices and facilitating voice over Internet protocol (VoIP) communications, allowing for voice calls over packet-based networks and integration with PSTN lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If proprietary protocols are used for instant messaging and voice services, then service providers can maintain control over their networks, but communication between different service providers becomes impossible without complex multi-subscription procedures
Solution Approach 1:
The patent introduces a gateway device as an intermediary between different service providers' networks. This gateway translates proprietary instant messaging and voice protocols into standard VoIP protocols, enabling communication between subscribers of different service providers without requiring them to maintain multiple subscriptions or understand proprietary protocols. The gateway acts as a protocol translator and network mediator.
Solution Approach 2:
The gateway device provides universal communication capability by supporting multiple proprietary protocols from different service providers and converting them all to standard VoIP. This multi-functional approach allows a single device to enable cross-provider communication for various instant messaging services and voice services, eliminating the need for separate proprietary network access for each service provider.
2Adaptability or versatility
If complex equipment configuration is used for voice services over instant messaging, then basic voice functionality can be provided, but the system becomes difficult to deploy and maintain with multiple dependencies
Solution Approach 1:
The patent combines multiple previously separate functions into a single gateway device: protocol translation, voice processing, instant messaging client emulation, and network routing. By merging these functions into one integrated device, the system eliminates the need for separate personal computers, microphones, sound cards, speakers, and software applications, thereby reducing deployment and maintenance complexity while maintaining voice service accessibility.
Solution Approach 2:
The gateway device automatically performs protocol translation and call routing without requiring manual configuration or user intervention. It autonomously manages the translation between proprietary protocols and VoIP, handles session establishment, and coordinates communication between different networks, thereby eliminating the need for complex equipment configuration by users.
3Reliability
If separate voice and data communication networks are maintained, then each network can be optimized for its specific protocol, but seamless communication between PSTN and Internet-based services becomes difficult
Solution Approach 1:
The gateway serves as an intermediary between the PSTN (circuit-switched voice network) and the Internet (packet-switched data network). It translates voice signals from the PSTN into VoIP packets for Internet transmission and vice versa, enabling seamless communication between the two previously separate networks while maintaining their individual optimization characteristics.
Solution Approach 2:
The gateway dynamically changes communication parameters by switching between circuit-switched mode for PSTN connections and packet-switched mode for Internet VoIP connections. It adapts protocol parameters, packetization rates, and transmission modes based on the network being accessed, thereby maintaining network optimization while enabling seamless cross-network communication.
Data Source
AI summary
A method of establishing a voice communication session with a multimedia access device employable in a multimedia communication system. In one embodiment, the method includes initiating a session request from a first endpoint communication device employing an instant messaging client and coupled to a packet based communication network. The method also includes processing the session request including emulating the instant messaging client for a second endpoint communication device coupled to said packet based communication network. The second endpoint communication device is a non-instant messaging based communication device. The method still further includes establishing a voice communication session between the first and second endpoint communication devices in response to the session request.