According to one or more aspects of the present disclosure, operations may include conducting, by a host device, first communication with a first device over a first network. The operations may further include conducting, by the host device based on the first communication, second communication with the first device over a second network when the first device is disconnected from the first network. The operations may also include obtaining, by the host device, a request for a communication session from a second device while the host device is conducting the second communication with the first device over the second network. In addition, the operations may include sending, by the host device, a request notification to the first device over the second network based on the host device conducting the second communication with the first device. The request notification may notify the first device of the request.