Wireless handoffs between multiple wireless networks

摘要

Methods of communicating from a wireless communications device are described, the method comprising: supporting a call over a first network that uses a first access technology or a second network that uses a second access technology to a remote communications device; and handing off the call from the first network to the second network by establishing a connection to the second network to support the call with the remote communications device, conferencing the wireless communications device into the call over the second network, and terminating a connection to the first network that was previously supporting the call with the remote communications device, wherein the connection to the second network is established in response to signaling from a network entity supporting a connection between the wireless and remote communication devices over the first network; the signaling from the network entity configured by the network entity to request that the wireless communications device establish the connection;, wherein the handoff of the call from the first network to the second network is transparent to a user on the call.