Bit-Transparent Signaling Transfer for VoIP Gateway Control
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Solution Overview
Problem
Existing voice over IP applications fail to fully utilize the functions of signaling channels in telecommunications networks due to inefficient conversion of signaling data into commands, leading to increased implementation effort and limited functionality.
Innovation Solution
Transferring signaling data bit-transparently between the gateway and the data processing device, allowing for conversion into control commands and vice versa, enabling the full utilization of signaling channel functions without requiring gateway adaptation, using protocols like MGCP, SIP, or H.323 for control command transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If signaling data is converted into commands by the gateway before transmission to the data processing device, then the gateway can control the connection element in the data network, but the implementation effort increases considerably and the functions of the signaling channel cannot be fully utilized
Solution Approach 1:
The patent inverts the conventional approach by having the data processing device perform the conversion function instead of the gateway. The gateway simply transfers signaling data bit-transparently to the data processing device, which then converts it into control commands. This inversion eliminates the complex conversion functionality from the gateway, significantly reducing implementation effort while maintaining control capability.
Solution Approach 2:
The patent extracts the signaling data conversion function from the gateway and places it in the data processing device. By taking out the conversion capability from the gateway, the system reduces the gateway's complexity and implementation effort, while the data processing device assumes the conversion responsibility and generates appropriate control commands.
2Adaptability or versatility
If signaling data is converted into commands by the gateway, then control commands can be transmitted to the data processing device, but the gateway must be adapted to various formats increasing device complexity
Solution Approach 1:
The patent extracts the format conversion responsibility from the gateway and assigns it to the data processing device. The gateway maintains simplicity by only performing bit-transparent transfer, while the data processing device handles the conversion between different formats and generates appropriate control commands, thereby eliminating gateway adaptation requirements.
Solution Approach 2:
The data processing device acts as an intermediary that handles the format conversion between the gateway and the network control functions. This intermediary approach allows the gateway to remain format-agnostic while the data processing device manages the complexity of converting between different signaling formats and generating control commands.
3Productivity
If full functional range of signaling data is utilized, then complete control of connection setup and maintenance is achieved, but the system requires bit-transparent transfer and data processing device adaptation
Solution Approach 1:
The patent extracts the complete signaling data processing functionality from the gateway and places it in the data processing device. This allows full utilization of signaling channel functions through bit-transparent transfer, while the data processing device assumes the adaptation responsibility, maintaining gateway simplicity.
Data Source
AI summary
The invention relates to a method for transferring a call between a telecommunications network and a data network. Between the data network and the telecommunications network an internetwork computer (gateway) is arranged, by which voice data of the call is converted from a format used in the telecommunications network into a format used in the data network, and conversely. Signaling data of the call is processed by a data processing device arranged in the data network. In order to make full use of the available functions of a signaling channel in telecommunications networks, even with voice connections that are partially over a data network, it is proposed that the signaling data be transferred bit-transparently between the gateway and the data processing device.