Patent ID: 7912038

Claim:
A method of completing a voice connection, comprising: receiving a first communication request at a communication system configured to establish a communication over one of at least one channel of a first type of switching and at least one channel of a second type of switching, wherein the first type of switching is not the same as the second type of switching; determining that the first communication request has a high priority status and responsively deciding to establish the first communication over a channel of the first type of switching; switching an existing communication having a low priority status from a channel of the first type of switching to a channel of the second type of switching if no channel of the first type of switching is available for the first communication, wherein the channel of the first type of switching is selected from among the at least one channel of the first type of switching and the channel of the second type of switching is selected from among the at least one channel of the second type of switching; and establishing the first communication over the selected channel of the first type of switching.