Ring-back Presentation via Separate Packet Session
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Solution Overview
Problem
Conventional call-setup procedures in mobile multimedia communication are limited to presenting only pre-recorded audio to waiting callers, and users have no control over ring-back presentations, which can be intrusive and interrupted when the called party answers.
Innovation Solution
Establishing a separate packet-switched communication session to provide pre-defined media content, including visual media, to the calling terminal, allowing users to control the playback and selection of ring-back presentations independently of the call status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate packet-switched session is established for ring-back presentation, then media versatility is improved, but device complexity increases
Solution Approach 1:
The patent divides the communication system into two independent sessions: a circuit-switched voice session and a packet-switched data session. The ring-back presentation is delivered through the separate packet-switched session, allowing multimedia content to be transmitted independently from the voice call. This segmentation enables versatile media delivery without complicating the core voice communication path.
2Ease of operation
If users are given control over ring-back playback, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent introduces dynamic user control mechanisms that allow callers to adjust ring-back presentation parameters in real-time. Users can select from multiple pre-defined presentations, adjust playback timing, and control when presentations start and stop. The system adapts to user preferences while maintaining automated fallback behaviors, balancing control flexibility with operational simplicity.
3Loss of information
If pre-defined media content is provided over packet-switched session, then information richness is improved, but loss of time increases
Solution Approach 1:
The patent pre-loads and caches ring-back presentation content in both the network server and the calling terminal before the actual playback occurs. When a call is initiated, the terminal checks for cached content and can immediately start playback without waiting for network transmission. This preliminary preparation eliminates delays while maintaining rich multimedia content delivery.
Data Source
AI summary
A method and arrangement for providing a ring-back presentation to a calling terminal after receiving a call setup request from the calling terminal (A) for a first communication session (308) with a called terminal (B). A second packet-based communication session (310) is established with the calling terminal, independent of the first session, and pre-defined media content is provided as said ring-back presentation (312) to the calling terminal over the second session. Thereby, ring-back presentations to waiting callers can be selected from a great range of media types, including visual media. A calling user can also control the playout or display of the ring-back presentation irrespective of when the call is answered.