it seems that if you conf six parties and one of the users is internal, they could conf 6 more and so forth.. but like the above post said your conf cards get full, no more conf feature.. might try group call them conf parties external, if you can conf after a group call.. i have used a hardware conf, have 12 people call the same mcr analog, and have them hardware bridged in the switch room. just used a lamp to (neon) to see incoming calls, then used a switch to make each unit common.. years ago i used that set up for election coverage.. all areas called then same number with the vote total
john poole
bellsouth business
columbia,sc