Media Gateway DTMF Control via Mapping
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Solution Overview
Problem
In current packet-based network architectures, the Media Gateway (MG) cannot control media play independently in response to Dual-Tone Multi-Frequency (DTMF) user input due to the separation of service and media bearer functions between the Media Gateway Controller (MGC) and MG.
Innovation Solution
A method and system that enable the MG or media resource processing device to control media play independently by detecting DTMF input and exercising media play control based on mapping information between media play control and DTMF input, using extended gateway control protocols like H.248 to map DTMF inputs to media control operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the service control function is separated from the media bearer function between MGC and MG, then device upgrade and service extension are simplified, but the MG cannot control media play independently in response to user input
Solution Approach 1:
The patent introduces mapping information as an intermediary that bridges the separated control plane (MGC) and bearer plane (MG). This mapping information contains correspondence relationships between DTMF inputs and media control operations, enabling the MG to independently interpret user inputs and execute media control operations without direct MGC intervention, thus resolving the contradiction between service separation and operational independence
Solution Approach 2:
The patent applies preliminary action by pre-establishing the mapping information between DTMF inputs and media control operations before actual media playback. The MGC sends this mapping information to the MG in advance, allowing the MG to autonomously process user inputs during media playback without requiring real-time control commands from the MGC, thereby achieving both service separation and operational independence
2Reliability
If the MGC controls all media play operations, then centralized control is maintained, but control efficiency is reduced due to constant MGC-MG communication overhead
Solution Approach 1:
The patent applies segmentation by dividing the media control function into two parts: the MGC retains centralized control for establishing the mapping information, while the MG gains autonomy for executing specific media control operations based on user inputs. This segmentation reduces communication overhead during media playback while maintaining centralized control architecture, thus resolving the contradiction between centralized control and control efficiency
Solution Approach 2:
The patent enables self-service by allowing the MG to independently process DTMF inputs and execute media control operations using the pre-provided mapping information. The MG no longer needs to constantly communicate with the MGC for each control operation, reducing communication overhead and improving control efficiency while the MGC maintains overall system control through the initial mapping information provision
Data Source
AI summary
The present invention discloses a method, a system, and a device for controlling media play. The method includes: detecting Dual Tone Multi-Frequency (DTMF) input; and exercising media play control for the detected DTMF input according to mapping information between media play control and the DTMF input. The system includes a controlling device and a processing device. The processing device receives the mapping information between media play control and the DTMF input, and learns which media play control operation maps to the DTMF input of the user according to the mapping information between media play control and the DTMF input after detecting the DTMF key codes input by the user. Therefore, the processing device controls media play independently, without involving control operation performed by the controlling device.