Interconnection Arrangements TRIZ Cases
- Live Chat Routing Across Websites for Private Real-Time Support
Routes chat requests by detected website or URL into agent queues, enabling private real-time messaging and centralized support across platforms.
- Terminal Supplementary Service Switching Across PS and CS Domains
Automatic fallback from PS to CS domain keeps terminal supplementary service settings working across LTE and overseas networks.
- Incoming Call Authentication Using Separate Device Verification
Separating authentication data from call signaling helps verify the caller's device or user while preserving a smooth incoming call experience.
- Spectrum Envelope Echo Suppression for Loudspeaker Nonlinear Distortion
Separating linear cancellation from spectrum-envelope estimation enables stable suppression of loudspeaker-induced nonlinear echo and clearer calls.
- Video Greeting Playback via Audio-to-Video Call Negotiation
When an audio call cannot reach the callee, server-side media negotiation upgrades the channel to play a prerecorded video greeting.
- Authenticated Call Routing for Private Number Continuity
Authentication and breakthrough routing keep a public phone number reachable to trusted callers while blocking unwanted calls and reducing number changes.
- Real-Time Voice Calls Using Text Relay and Voice Profile Synthesis
Voice is converted to text and rebuilt with a user voice profile to cut bandwidth and keep call quality stable under changing network conditions.
- Real-Time Voice Communication Using Text-Based Voice Relay
Speech is converted to text and rebuilt with a user voice profile to cut bandwidth while preserving real-time call quality.
- SMF-Controlled MAC Address Reporting in 5G Ethernet PDU Sessions
Selective UPF reporting of MAC addresses lets the SMF cut 5G Ethernet PDU signaling load and storage while preserving policy control.
- IMS Network Switching During Ringing-State Call Setup
By delaying IMS registration until ringing changes to connecting, this case prevents call drops during network switching and improves connection rates.
- Elevator Emergency Call Detection Using Retained Calling State
Periodic clearing and re-storing of elevator call state helps detect continuous button pressing and avoid unnecessary monitoring-center calls.
- IP Phone Service State Detection Using Multi-Source Machine Learning
Multi-source machine learning combines VoIP and network monitoring data to accurately detect IP phone online or offline status and outages.
- VoIP Call Type Detection Using SIP, RTP, and Howling Response
Response-time checks across SIP, RTP, and howling feedback help distinguish normal VoIP calls from forged voice phishing calls.
- Adaptive Echo Suppression Masks for Small-Speech Double-Talk Detection
Adaptive mask selection tracks reception signal level to suppress echo while preserving small near-end speech during double-talk.
- VOIP Call Disturbance Scoring for Emergency Queue Prioritization
Disturbance tags and call-history scoring help PSAPs filter non-emergency VOIP traffic so urgent calls reach operators faster.
- Multi-Device Acoustic Echo Cancellation With Sample Rate Offset Compensation
Resampling and dual interference estimation compensate sample rate offsets, improving echo cancellation and spatial audio across unsynced devices.
- Adaptive Echo Suppression Using Signal-Level Mask Selection
Multiple signal-level masks improve small-speech detection and suppress echo without unnecessarily removing the near-end voice.