SIP Terminal Control via Distributed Multilink CPU Load
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Solution Overview
Problem
Existing SIP terminal control systems face limitations in connecting multiple SIP terminals due to CPU load concentration on the master main device, restricting the number of terminals that can be connected, as direct control by the master device leads to heavy processing loads.
Innovation Solution
A SIP terminal control system and method that distribute control across multiple main devices by creating multilink sections and SIP terminal connecting sections, utilizing the CPU of the master and slave main devices to operate these sections via SIP links, allowing for efficient processing distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the master main device directly controls SIP terminals, then control simplicity is maintained, but CPU load concentrates on the master device, restricting the number of connectable terminals
Solution Approach 1:
The control system is segmented by introducing multilink sections that distribute SIP terminal control across multiple main devices. Each multilink section manages specific SIP terminals, dividing the centralized control function into distributed control units. This segmentation allows the system to maintain control simplicity through standardized multilink interfaces while significantly increasing the number of connectable SIP terminals by utilizing the combined processing capacity of multiple devices.
2Extent of automation
If control processing is concentrated on the master main device CPU, then centralized control is achieved, but heavy load processing restricts system capacity
Solution Approach 1:
Multilink sections serve as intermediary components between SIP terminals and main devices. These intermediaries handle the heavy load processing of SIP message control locally, eliminating the need for all processing to occur on the master main device CPU. The multilink sections maintain centralized control coordination while distributing the actual processing load, thereby increasing system capacity without sacrificing centralized control capability.
3Adaptability or versatility
If slave main devices are added to the system, then system versatility is enhanced, but without multilink sections, SIP terminal control remains concentrated on the master device
Solution Approach 1:
The multilink section design provides universality by creating a standardized control interface that works across different main devices (both master and slave). This universal multilink interface allows any main device in the system to participate in SIP terminal control, enabling slave devices to contribute their processing capacity. The same multilink mechanism serves multiple functions: distributing control, balancing load, and enabling versatile system configurations without increasing operational complexity.
Data Source
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AI summary
An SIP terminal control system makes it possible for SIP terminals to be connected to the system including a master main device and one or more slave main devices. The SIP terminal control system includes the master main device and slave main devices connected to the master main device. The master main device includes multilink sections each corresponding to the master main device or to each of the slave main devices. The master main device and the slave main devices each include an SIP terminal connecting section which connects SIP terminals. The multilink sections and the SIP terminal connecting sections are connected to each other by an SIP link. The multilink sections operate by using a CPU of the master main device. The SIP terminal connecting sections each operate by using a CPU of the slave main device or master main device that contains the SIP terminal connecting section.