Two way radios

[Snowreap]

you can have a lot more than 15 if you use the right radios.

the limit on the number of concurrent conversations you have depends on how much time each conversant spends talking. an individual who simply won't shut up can lock out the channel for everyone else for long periods of time. but if everybody's conversations consist of short sentences punctuated by long silences, then you could probably get a lot more than 15 onto one channel.

-ken