VoIP Service Connection via POTS Trigger and Periodic Registration
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Solution Overview
Problem
Current wireless networks face challenges in providing reliable Voice over Internet Protocol (VoIP) services due to the conflict between VoIP traffic and dial-on-demand functions, leading to potential call failures, inconvenience in setting up connections, and disconnection issues that affect emergency calls and overall usability.
Innovation Solution
A method and communication terminal that utilize a Plain Old Telephone Service (POTS) unit to generate requests for VoIP services, a triggering logic unit to set up connections with the wireless network, and a VoIP service unit to process calls through network registration, allowing for seamless VoIP service implementation over a wireless network without wasting radio bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If dial-on-demand function is enabled in wireless network, then radio bandwidth is saved by disconnecting when no traffic, but VoIP service connection reliability deteriorates
Solution Approach 1:
The patent implements periodic registration update messages sent by the communication terminal to the server at predetermined intervals. This periodic action maintains the connection state in the network even during idle periods, preventing the network from disconnecting the terminal while still allowing dial-on-demand to disconnect when no actual traffic exists, thus resolving the contradiction between bandwidth savings and connection reliability
Solution Approach 2:
The patent performs preliminary network registration and connection establishment before actual VoIP traffic needs to flow. By pre-establishing the bearer connection and maintaining registration status, the system ensures that when VoIP traffic actually occurs, the connection is already in place and ready, eliminating connection failures while still allowing idle disconnection
2Reliability
If connection is set up via data service for VoIP, then VoIP service reliability is improved, but operation convenience deteriorates
Solution Approach 1:
The patent merges the VoIP service functionality with the existing data service infrastructure. The communication terminal uses the same packet-switched network connection for both data services and VoIP services. By combining these functions and using unified registration and connection management procedures, the system achieves reliable VoIP service without requiring separate manual connection setup, thus improving reliability while maintaining ease of operation
Solution Approach 2:
The communication terminal is designed with multi-functionality to handle both data services and VoIP services through a single unified interface and connection management system. The terminal can perform registration, connection establishment, and maintenance for both service types using the same mechanisms, eliminating the need for separate connection setup procedures and making the system universally applicable to both service types
3Reliability
If dial-on-demand is always disabled for VoIP, then VoIP service reliability is improved, but radio bandwidth waste increases
Solution Approach 1:
The patent implements periodic registration updates that allow the terminal to maintain its registered state and bearer connection without requiring continuous active traffic. This periodic action enables the system to keep the connection available for VoIP services while allowing the network to disconnect during extended idle periods when even periodic updates are not sent, thus achieving both reliability and bandwidth efficiency
Solution Approach 2:
The system dynamically adjusts the connection state based on actual service needs. The terminal can maintain a registered state with periodic updates when VoIP service is needed, and allow disconnection when no service is needed. The bearer connection can be dynamically established or released based on the presence or absence of service requirements, making the system adaptive rather than static
Data Source
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AI summary
The present invention discloses a method and a communication terminal for implementing a voice service through a wireless network. The method includes: generating a request for a voice service according to a voice service access code and generating a trigger signal according to the request; setting up a connection with the wireless network according to the trigger signal; performing network registration for the voice service; and processing a call of the voice service through the network connection after the network registration is successful. The technical solution of the present invention overcomes the conflict between Voice over Internet Protocol (VoIP) and dial-on-demand when VoIP traffic is carried over a Packet Switched (PS) network, so that no radio bandwidth is wasted and that the user can use VoIP at any time with no need to modify the network.