Transitioning a video call between networks

A wireless communication device comprising

• at least one transceiver, the at least one transceiver configured to send wireless signals to and receive wireless signals from a first cellular network and a legacy cellular network;
• and processing circuitry coupled with the at least one transceiver, the processing circuitry configured to control the wireless communication device to at least:
• participate in a video call with a remote communication device via a first video call session established over a connection between the wireless communication device and the first cellular network, the first video call session comprising a packet switched video stream carried over a first bearer and a packet switched audio stream carried over a second bearer;
• determine a degradation in connection quality of the first cellular network;
• transition to the legacy cellular network having a circuit switched domain in response to the degradation in connection quality of the first cellular network;
• establish a second video call session with the remote communication device on the legacy cellular network in response to transitioning to the legacy cellular network;
• provide an indication via a user interface that the video call is ongoing while transitioning to the legacy cellular network and establishing the second video call session;
• and
• use the second video call session to continue the video call on the legacy cellular network.

A non-transitory computer readable storage medium having computer program code stored thereon, the computer program code comprising program code, which, when executed by one or more processors implemented on a wireless communication device, is configured to cause the wireless communication device to perform a method comprising:

• participating in a video call with a remote communication device via a first video call session established over a connection between the wireless communication device and a first cellular network;
• determining a degradation in connection quality of the first cellular network;
• transitioning to a second cellular network in response to the degradation in connection quality of the first cellular network;
• establishing a second video call session with the remote communication device on the second cellular network in response to transitioning to the second cellular network;
• providing an indication via a user interface that the video call is ongoing while transitioning to the second cellular network and establishing the second video call session;
• and
• using the second video call session to continue the video call on the second cellular network.