Video Greeting Playback via Audio-to-Video Call Negotiation

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Solution Overview

Problem

Existing voice mail systems restrict functionality when a calling user initiates an audio call, preventing the playback of video greetings even if the called user has recorded a video greeting, leading to a suboptimal user experience.

Innovation Solution

A method and system that enables video media negotiation with the calling user's terminal to convert an audio call into a video call, allowing the playback of pre-recorded video greetings when the called user's voice mail system supports video capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the calling user terminal is an audio call, then the calling user terminal can only play the audio greeting, but the functionality of the VMS is restricted and cannot fully meet the requirements of users

Engineering Contradiction:

Improvefunctionality of VMSVSAvoidmedia channel type

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system dynamically adjusts the media channel type from audio to video based on the capabilities of the calling user terminal. The server performs media negotiation to determine whether the terminal supports video calls, and if so, converts the audio call to a video call to enable video greeting playback, thereby enhancing adaptability while maintaining operational simplicity

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the media channel parameter from audio to video when the calling terminal supports video capabilities. This parameter change enables the terminal to play video greetings instead of being restricted to audio greetings, thus improving versatility without complicating the user interaction

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the VMS supports video greeting, then the user experience is improved, but the calling user terminal must support video call capabilities

Engineering Contradiction:

Improveuser experienceVSAvoidterminal capability requirement

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The server acts as an intermediary between the video greeting system and the calling terminal. It performs media negotiation to assess the terminal's capabilities and facilitates the conversion of audio calls to video calls when necessary, enabling video greeting playback without requiring all terminals to natively support video calls

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system makes the video greeting feature universally accessible by enabling audio-only terminals to play video greetings through server-mediated media conversion. This multi-functional approach allows the VMS to serve both video-capable and audio-only terminals, improving user experience across diverse device types

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12489849B2Video greeting playing method, system, server and storage medium

Publication Date: 2025.12.02 ZTE CORP

AI summary

Embodiments of the present application relate to the technical field of communication, and provide a video greeting playing method, system, server and storage medium. The video greeting playing method includes: in response to receiving a call transfer request indicating that a first terminal fails to call a second terminal, acquiring a type of a media channel currently accessed by the first terminal; in response to that the type of the media channel currently accessed by the first terminal is audio, performing video media negotiation with the first terminal; and in response to that the video media negotiation with the first terminal succeeds, sending a video greeting pre-recorded by the second terminal to the first terminal for the first terminal to play the video greeting.