Roaming Call Management via Text-Only Mode Switching
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Solution Overview
Problem
Network operators face high roaming charges when their subscribers use services from other wireless communication systems, and existing technologies do not effectively manage these charges or optimize communication protocols to minimize bandwidth usage and costs.
Innovation Solution
A method and system that detect roaming usage and, when it meets certain criteria, handle calls as if the device is in text message-only mode, preventing non-text-message calls from being forwarded and informing callers of this status, thereby reducing roaming charges and optimizing bandwidth efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication system allows full voice call functionality for roaming devices, then call quality and user experience are improved, but roaming charges and network bandwidth consumption increase
Solution Approach 1:
The system dynamically changes the operational parameters of the communication device by switching between full voice call mode and text message-only mode based on roaming status and criteria. When a device is identified as roaming and meets specified criteria, the system modifies call handling parameters to route only text messages while blocking voice calls, thereby reducing roaming charges while maintaining essential communication functionality
Solution Approach 2:
The communication system acts as an intermediary between the calling device and the roaming device. It intercepts call requests, evaluates roaming status, and makes routing decisions without requiring the roaming device to actively manage its own call filtering. The system mediates by sending notifications to calling devices about the roaming device's text-message-only status, allowing callers to choose alternative communication methods
2Loss of energy
If the system blocks all calls to roaming devices in text message-only mode, then roaming charges are reduced, but call connectivity and user convenience deteriorate
Solution Approach 1:
The system performs preliminary evaluation of roaming status and criteria before call routing decisions are made. By pre-identifying devices in text message-only mode and notifying calling devices in advance, the system allows callers to take alternative actions (such as sending text messages or choosing different contact methods) before attempting voice calls, thereby maintaining user convenience while preventing unnecessary roaming charge accumulation
Solution Approach 2:
The system implements feedback mechanisms by notifying calling devices about the roaming device's text message-only status. This feedback loop allows callers to adjust their communication approach based on the received information, choosing to send text messages or use alternative contact methods rather than attempting blocked voice calls, thus maintaining ease of operation while reducing roaming charges
Data Source
AI summary
A method to manage a call in a communication system and an access node of the communication system are disclosed. The method includes receiving, by the communication system, a call request for a voice call from a first device to communicate with a second device, wherein the second device is a subscriber of the communication system, and transmitting, by the communication system to the first device, a first message comprising an indication that the second device is operating in a text message-only mode, when the second device is roaming and a roaming usage of the second device meets a roaming criteria. The access node may be configured to transmit to the first device the first message, when the first device requests to establish a call with the second device through the access node, the second device is roaming, and a roaming usage of the second device meets the roaming criteria.