I know that the documentation states that you can only have (2) analog trunks in a conference but is this a hardcoded limitation using 3.1 and higher? Can anybody explain the technical reasons behind the limitation? I have read from other posts that there is feedback, etc.. and I was wondering if anybody could explain more. Also - are these limitations common for competitive products (i.e. Nortel, Panasonic, Samsung, etc.....)??