Do Cortex Handsets allow a PA or Intercom function to talk to each other? Follow Currently this is not supported by the Cortex Handsets, but it is on our development roadmap. Related articles How long does the Cortex Handset battery last and can it be replaced? Does Cortex support a multilingual user interface? Cortex Version Release History Is the Cortex Handset capable of wireless charging? Can I program the ATIS number in Cortex myself?