Large scale intercom questions

[nickeh]

Hi,

I have been googling around trying to find a solution on how to build a large scale intercom network for broadcasting. I already plan to have RPi's at every camera for tally use (the red light that turns on when the camera is on air) and I was thinking that I could use the same RPi for communcations. The need is for a low latency two way communication channel that should start automatically when the RPi boots (must be a command line client) and open a communcations line to the predefined station.

I have a Ubuntu server on the network that can act as the server for the intercom also.

The first step would be to just have one channel that everybody is using (cameras, director, sound, lights etc 10-20 clients) but on bigger productions the sound crew needs its own channel and so does the light crew etc etc.

All groups (audio, light, camera etc) can talk to everyone in that group (all can hear what is said), all groups should also have a basestation that can talk to other basestations (the director using the basestation in the video group can talk to the basestation of the audio and light groups but not directly to other useres in that group). It is quite complex, but as I said one channel is a good start.

I'm have almost no experience with VoIP so I am looking for solutions (or just pointers) that could make this possible. I have looked at Mumble/murmur but what I understand it needs a GUI.

Thanks in advance!

[DougieLawson]

Google for "ircd"

sudo apt-get install ircd-hybrid

[nickeh]

Thanks Dougie, I'll take a look at it.