Voicemail SIP Header Authentication Integration
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Solution Overview
Problem
Existing telecommunication systems fail to preserve and present authenticated caller information when a call goes to voicemail, leading to potential fraud and mistrust.
Innovation Solution
A method and system that integrate SIP header verification with voicemail services, allowing authenticated caller information to be stored and presented to the called party when retrieving voicemail, even if the call was not answered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the called party is not available to receive the call, then the call is routed to voicemail, but the authenticated caller information from the SIP header is lost
Solution Approach 1:
The system performs preliminary extraction and storage of authenticated caller information from the SIP header before the call is routed to voicemail. The terminating telephony service provider system captures the SIP identity header during call setup, verifies it through STIR/SHAKEN protocols, and stores the authenticated information in association with the voicemail message, ensuring the information is preserved even when the called party is unavailable
Solution Approach 2:
The patent introduces an intermediary mechanism where the terminating telephony service provider system acts as a mediator between the SIP header verification process and the voicemail system. This intermediary captures and transports the authenticated caller information from the signaling path to the media storage path, linking the SIP header verification results with the voicemail message through a mapping process
2Reliability
If SIP header verification is performed, then call authentication is improved, but system complexity increases
Solution Approach 1:
The terminating telephony service provider system performs multiple functions using the same SIP header verification infrastructure: it verifies call authentication, extracts caller information, and associates verification results with voicemail messages. This multi-functionality reduces the need for separate dedicated systems for each task, thereby managing complexity while maintaining high verification accuracy
3Loss of information
If authenticated caller information is stored with voicemail, then information preservation is improved, but data storage requirements increase
Solution Approach 1:
The system extracts only the essential authenticated caller information from the SIP header (such as caller ID, verification status, and authentication level) rather than storing the entire header structure. This selective extraction preserves the critical authentication data while minimizing the additional storage burden on the voicemail system
Data Source
AI summary
Various arrangements for providing authenticated caller information for voicemail are presented herein. A terminating telephony service provider system can receive a request to connect a telephone call, the request comprising a session initiation protocol (SIP) identity header. The terminating telephony service provider system can perform a verification based on the SIP identity header. A voicemail may be created based on audio received from the calling party via the telephone call. SIP header information can be stored and mapped to the voicemail. The terminating telephony service provider system can then output, to a called party user equipment (UE), an indication of the voicemail with an indication of the verification based on the SIP identity header.