1. An apparatus for audio communication between a local party and a remote party, comprising: a microphone configured to produce audio comprising speech or sounds produced by the local party; a hold control configured to select a connected selection or a hold selection; a processor configured to identify the audio produced during the connected selection as primary audio, and to identify the audio produced during the hold selection as secondary audio, in use the secondary audio not being heard by the remote party; a transceiver configured to transmit the primary audio and the secondary audio, wherein the processor is further configured to packetize the primary audio and the secondary audio, and to mark at least one of (i) packets of the primary audio and (ii) packets of the secondary audio such that the primary audio produced during the connected selection and the secondary audio produced during the hold selection can subsequently be distinguished from one another; and an analytics engine configured to receive the primary audio and the secondary audio and to determine speech metrics therefrom.