Smart Dialplan Caching for SIP Device Resource Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Session Initiation Protocol (SIP) devices face significant resource and bandwidth usage due to the need for constant digit analysis by call managers during VoIP calls, as they typically rely on external dialplans that require transmitting individual digits for each call, leading to inefficient communication and resource utilization.
Innovation Solution
Implementing a smart dialplan that allows SIP devices to cache previously dialed phone numbers, enabling them to locally match input strings and reduce the need for external digit analysis by accessing a local cache before sending digits to the call manager, thereby minimizing resource usage and network bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If SIP devices use traditional external dialplans requiring constant digit analysis by call managers, then call routing functionality is maintained, but network bandwidth consumption and call manager resource usage increase significantly
Solution Approach 1:
The system performs preliminary actions by collecting dialing information and generating dialplan rules in advance, storing them locally in the SIP device. This allows the device to autonomously match dialed digits against cached patterns without requiring real-time call manager intervention for each digit sequence, thereby reducing ongoing resource consumption while maintaining routing accuracy
Solution Approach 2:
The invention creates local copies of dialplan data by caching previously analyzed digit sequences and their corresponding routing rules directly in the SIP device. Instead of repeatedly querying the call manager for the same digit patterns, the device uses these local copies to quickly determine routing decisions, significantly reducing network bandwidth usage and call manager processing load
2Reliability
If SIP devices transmit individual digits to call managers for analysis during each call, then accurate call routing is achieved, but network bandwidth consumption increases
Solution Approach 1:
The system performs preliminary digit analysis by collecting dialing sequences and pre-determining routing rules before actual calls occur. These pre-analyzed rules are stored locally, enabling the SIP device to autonomously route calls without transmitting individual digits to the call manager during the call setup phase, thereby maintaining routing accuracy while reducing network bandwidth consumption
Solution Approach 2:
The SIP device enables self-service by implementing local dialplan caching and autonomous digit sequence matching capabilities. The device independently determines routing decisions by comparing dialed digits against cached patterns, eliminating the need for continuous call manager involvement in digit analysis, thus reducing network bandwidth usage while preserving call routing reliability
3Adaptability or versatility
If SIP devices download dialplans from external servers that remain constant, then dialplan management is simplified, but the system cannot adapt to dynamic dialing patterns
Solution Approach 1:
The system implements dynamics by transitioning from static, pre-configured dialplans to dynamic, adaptive dialplan rules that evolve based on observed dialing patterns. The SIP device continuously collects digit sequences, analyzes them to identify patterns, and updates its local dialplan cache accordingly, enabling the system to adapt to changing communication needs while maintaining manageable complexity through automated learning processes
Data Source
Figure 1~2
Figure 3
Figure 4A
AI summary
Methods and apparatus for dialing numbers using a session initial protocol device are disclosed. According to one aspect of the present invention, a method includes obtaining at least a first part of an input string associated with a dialplan. The input string includes at least one character. The method also includes determining if at least a first potential target string stored in a local cache includes the first part of the input string, and accessing an external call manager arrangement if the first potential target string stored in the local cache does not include the first part of the input string.