VoIP-UMS Call Discrimination via SIP Message Merging
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Solution Overview
Problem
Existing VoIP-UMS systems face delays and message loss due to the lack of call information in initial SIP messages, hindering rapid response and efficient voice service delivery.
Innovation Solution
Incorporating call information into the SIP message during initial call setup, allowing the VoIP-UMS to discriminate and respond to calls more effectively by combining the invite message with an INFO message, enabling proper voice service management and user settings for busy or all-forward scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If call information is not included in the initial SIP message, then the message structure remains simple and standard, but the VoIP-UMS system experiences delays and cannot respond rapidly to calls
Solution Approach 1:
The patent combines the INVITE message and INFO message into a single integrated SIP message structure. The call information that would traditionally be sent in a separate INFO message is now embedded within the initial INVITE message body, allowing the VoIP-UMS system to process call information immediately upon receiving the initial call setup message, thereby eliminating delays without requiring additional message exchanges.
2Reliability
If call information is included in the initial SIP message, then the VoIP-UMS can discriminate and respond to calls more effectively, but the SIP message structure becomes more complex
Solution Approach 1:
The patent merges the call information data that would traditionally require separate messaging into the body portion of the initial SIP INVITE message. This integration allows the VoIP-UMS system to immediately access call information (such as caller ID, call type, and routing information) when the message is first received, improving call discrimination accuracy and response reliability without requiring additional separate INFO messages.
3Loss of time
If separate INFO message is used for call information, then the SIP protocol remains standard and simple, but message loss and delays occur in VoIP networks
Solution Approach 1:
The patent applies preliminary action by embedding all necessary call information into the initial SIP INVITE message before the call setup process begins. By including the INFO message content within the body of the INVITE message, the system ensures that call information is delivered immediately with the first message, eliminating the risk of message loss or delays that would occur if a separate INFO message were sent later in the call setup sequence.
4Productivity
If call information is embedded in the SIP message body, then rapid response is enabled, but the message format becomes more complex requiring additional parsing
Solution Approach 1:
The patent combines multiple data elements (call information and call setup information) into a single SIP message structure. The call information is embedded in the message body using a standardized format that can be parsed efficiently by the VoIP-UMS system, enabling rapid processing and service delivery while maintaining a manageable level of processing complexity through structured data organization.
Data Source
AI summary
A VoIP-UMS accessed via a private branch exchange or an IP-phone using a Session Initiation Protocol (SIP). More particularly, the method has access the VoIP-UMS in which an initial call setup message is sent which includes call information upon accessing the VoIP-UMS for the purpose of using functions, such as voice mail or the like. When a user accesses a voice service system over a network directly from a terminal, the user accesses via an SIP server, or the user accesses via a switching system, the VoIP-UMS can discriminate connected calls easily, and determinate and respond to the calls rapidly because an INVITE message, which is a Session Initiation Protocol message attempting to access the VoIP-UMS, includes an INFO message that is a message on call information.