Abstract: A device and method for routing an incoming call event to a selected telephony application based on network quality. Upon receiving an incoming call, the device measures the quality of the network connection and compares it to a predetermined threshold. Based on this comparison, the device automatically selects between a default first telephony application and a second telephony application that requires higher network quality. The incoming call is then routed to the selected application, and a communication link is established with capabilities adapted to the measured network quality. The device may continuously monitor network quality and transition between applications if conditions change. Additional features include detecting screen viewability to trigger transitions, associating call continuity identifiers for seamless switching, and adjusting thresholds based on network type.

Abstract: A method and system for causing a call leg transition based on determining that a screen of a device is not viewable to a user are disclosed, comprising receiving, using a default first telephony application, an incoming call event having a first call leg over a first connection to a telecommunication network addressed to the device, accepting the incoming call event using a second telephony application, creating a second connection having a second call leg to the telecommunication network corresponding to the incoming call event, associating a call event continuity identifier unique to the incoming call event with each of the first and second call legs so that the first and second call legs are connectable at a common port in the telecommunication network, determining if the screen of the device is viewable to the user, and causing a transition from the second call leg to the first call leg based on determining that the screen of the device is not viewable to the user.

Abstract: A method and system for causing a call leg transition based on determining that a screen of a device is not viewable to a user are disclosed, comprising receiving, using a default first telephony application, an incoming call event having a first call leg over a first connection to a telecommunication network addressed to the device, accepting the incoming call event using a second telephony application, creating a second connection having a second call leg to the telecommunication network corresponding to the incoming call event, associating a call event continuity identifier unique to the incoming call event with each of the first and second call legs so that the first and second call legs are connectable at a common port in the telecommunication network, determining if the screen of the device is viewable to the user, and causing a transition from the second call leg to the first call leg based on determining that the screen of the device is not viewable to the user.

Abstract: A method and system for triggering hand-off of an incoming call event from a default first telephony application to a second telephony application on a device are disclosed, comprising receiving an incoming call event addressed to the device, causing a notification of the incoming call event using the default first telephony application on the device, during the notification of the incoming call event, and without answering the incoming call event using the default first telephony application, receiving a navigation input on a user interface of the device to navigate to the second telephony application on the device, and, responsive to receiving the input to navigate to the second telephony application on the device, causing the second telephony application to be displayed on the device, and accepting the incoming call event using the second telephony application, creating a telephony connection corresponding to the incoming call event.

Abstract: A method and system for triggering hand-off of an incoming call event from a default first telephony application to a second telephony application on a device are disclosed, comprising receiving an incoming call event addressed to the device, causing a notification of the incoming call event using the default first telephony application on the device, during the notification of the incoming call event, and without answering the incoming call event using the default first telephony application, receiving a navigation input on a user interface of the device to navigate to the second telephony application on the device, and, responsive to receiving the input to navigate to the second telephony application on the device, causing the second telephony application to be displayed on the device, and accepting the incoming call event using the second telephony application, creating a telephony connection corresponding to the incoming call event.