Patent ID: 7505467

Claim:
In a digital communications network, a method comprising: checking a multiplexed connection's bandwidth capacity to carry a call over a link; overflowing the call onto a single non-multiplexed connection without sending the call onto the multiplexed connection, when the multiplexing connection's bandwidth is insufficient to carry the call; and presenting the call to an ATM Q.2931 layer if the multiplexing connection's bandwidth is insufficient to carry the call, wherein overflowing the call includes adding the single non-multiplexed connection over the link per call with the single non-multiplexed connection having a sufficient bandwidth for only the call; transmitting the call over the non-multiplexed connection; tearing down the single non-multiplexed connection once the call is completed; and transferring the call from the non-multiplexed connection to the multiplexed connection if the multiplexing connection's bandwidth changes from insufficient to sufficient to carry the call.