On Wed, 13 Sep 2023, at 12:31 PM, Pete Holzmann wrote: > Turns out that almost every IP phone out there can be configured to > send and receive one-button speakerphone "paging" functionality. > > This standard capability uses multicast RTP, with specific IP and port > configured for each Page group. Most phones can monitor several groups. > > I am thinking that the exact same functionality would make a wonderful, > simple, whole-house intercom/paging system. "Time for dinner!" etc :-D > > Has anyone configured PulseAudio to send or receive these signals? > > I'd love to set up so: > - in-ceiling speakers can play the "paging' message > - various devices with a microphone can be used to initiate a "page" > - etc... > > Am I missing something in thinking this ought to be quite doable with > this package? It's doable, but not necessarily out of the box. We do have a couple of modules to send/receive RTP, and we can even detect streams on your network using SAP, but this is currently limited to L16 (16-bit PCM) and Opus: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/blob/master/src/modules/rtp/sdp.c#L93 -- Arun
