Patent ID: 9473644
Filing Date: 2016-10-18
CPC Classification: H04L,H04M

Claim Text:
1. A method for eliminating a hairpin condition in a telecommunications network, the method comprising: (a) identifying a first call leg that utilizes packet processing resources in a bearer node, wherein the bearer node includes a plurality of channel interfaces coupled to a circuit-switched network, a time division multiplexing (TDM) switching matrix coupled to the channel interfaces, and a plurality of voice servers, coupled to the TDM switching matrix, that include digital signal processor (DSP) resources configured to convert data between a TDM format and a packet format for the packet processing resources; (b) identifying a second call leg that utilizes the packet processing resources in the bearer node; (c) determining whether the first and second call legs are in a hairpin condition, wherein, in the hairpin condition, the first and second call legs join a first user on the circuit-switched network to a second user on the circuit-switched network and the first and second call legs utilize at least some of the DSP resources in addition to the packet processing resources; and (d) in response to determining that the first and second call legs are in the hairpin condition, connecting the first and second call legs within the bearer node by shunting the first call leg to the second call leg through the TDM switching matrix, creating a loopback from the circuit-switched network to the circuit-switched network and bypassing both the packet processing resources and the voice servers that include the DSP resources.