Voice-over-LTE (VoLTE) and Voice-over 5G (Vo5G) services rely on voice transcoding using codecs such as FR/EFR, AMR, EVRC and EVS. Often deployed on media resource function (MRF) or similar platforms, voice transcoding can be implemented as virtual, NFV cloud or hybrid appliance options.
Any of these platforms can benefit by using PCI Express (PCIe) add-in acceleration cards to offload the voice processing from the host processor. Using add-in cards enables the main processors to focus on other tasks, such as orchestration, management and billing functions.