Random Channels for Unlinked Objects

I would like to change the channel number for unlinked object to object (''llWhisper - llListen) communications everytime a specific event occurs. One object rezzes the other (the specific event) and may be in close proximity to another set of the same objects. I'm trying to prevent cross communications between objects or is that not a worry? Any help in this area will be greatly appreciated!

One solution could be to use code similar to the following to generate a random negative obscure channel number:



and then pass this as the 'integer param' parmeter of llRezObject:



The newly rezzed object receives CommChannel as the 'integer start_param' of it's on_rez event.

This will work wonderfully. Thank you so much for your help!