VoIP Urgent Call Ring Tone Differentiation
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Solution Overview
Problem
Existing communication networks, such as VoIP networks, lack a mechanism to differentiate and prioritize urgent calls, often resulting in calls being left unanswered due to regular ring tones or voice mail redirections, which can delay critical communications.
Innovation Solution
Implementing a method within VoIP networks to provide special ring tones or high-frequency intercept tones for urgent calls, allowing calling parties to request and send emergency ring tones to registered subscribers, even if the called party is already engaged in a conversation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If regular ring tones are used for all calls, then network simplicity is maintained, but urgent calls cannot be differentiated and may be left unanswered
Solution Approach 1:
The patent applies local quality by providing different ring tone characteristics for different call types. Instead of using a uniform ring tone for all calls, the system implements special ring tones with distinct acoustic characteristics (such as higher frequency, longer duration, or unique patterns) for urgent calls, while maintaining standard ring tones for regular calls. This allows the network to maintain overall simplicity while introducing localized differentiation where needed to ensure urgent calls are noticed.
2Reliability
If called parties are busy or do not want to be disturbed, then call redirection to voice mail is appropriate, but urgent calls may be delayed or missed
Solution Approach 1:
The patent utilizes parameter changes by modifying the ring tone parameters (frequency, amplitude, duration, pattern) based on call urgency level. When a call is marked as urgent, the system changes the ring tone parameters to create a distinct acoustic signal that stands out from regular ring tones. This allows called parties to easily distinguish urgent calls even when they are busy or have call forwarding enabled, ensuring that urgent communications receive appropriate attention without disrupting normal call handling operations.
3Productivity
If special ring tones are implemented for urgent calls, then call priority is improved, but network complexity increases
Solution Approach 1:
The patent applies universality by implementing a ring tone differentiation mechanism that can be integrated into existing VoIP network infrastructure. The special ring tone functionality is achieved through software-based signaling and processing that works within standard VoIP protocols, rather than requiring separate hardware systems. This allows the same network infrastructure to handle both regular and urgent calls using unified processing mechanisms, thereby improving urgent call response speed without proportionally increasing network complexity.
Data Source
AI summary
A method and apparatus for enabling calling parties to request the VoIP network to provide a special ring tone to be signaled as the occurrence of an urgent call to called parties are disclosed. Alternatively, a high frequency intercept tone or call waiting tone is also provided when the called parties are already engaged in conversation when an urgent call is incoming.