Patent ID: 8751223
Filing Date: 2014-06-10
Classification: H04L

Abstract:
1. A method, comprising the steps of: receiving a first voice stream for a packet-switched call from a calling party, wherein the first voice stream conforms to a first silence suppression scheme and comprises a plurality of encoded packets for the packet-switched call; selecting a subset of encoded packets from the plurality of encoded packets to create a second voice stream that conforms to a second silence suppression scheme, wherein the second voice stream comprises the subset of encoded packets, wherein the first silence suppression scheme is distinct from the second silence suppression scheme; and forwarding the second voice stream toward a called party for the packet-switched call, wherein the first voice stream comprises a first discontinuous transmission (DTX) stream and wherein the second voice stream comprises a second DTX stream, wherein the step of selecting the subset of encoded packets comprises the step of: selecting the subset of encoded packets according to the second silence suppression scheme, such that the second DTX stream conforms to the second silence suppression scheme, wherein the first and second silence suppression schemes comprise respective first and second silence suppression intervals; wherein the plurality of encoded packets comprise at least one of: wherein the step of selecting the subset of encoded packets comprises the step of: selecting, upon the second silence suppression interval, a most recently received packet of the at least one of the synchronous packet or the asynchronous packet, wherein the subset of encoded packets comprises the most recently received packet; wherein the step of forwarding the second DTX stream comprises the step of: forwarding the most recently received packet upon the second silence suppression interval.