currently i have a etrali phone system for my trader that are able to have one internal phone calling to 8 external line at the same time, that mean 1 can talk and hear all the 8 external party , but the external party can not hear each other.
reason of this function for trader to get the best price from 8 different trading brokage firm at the same time.
the external line is analog line.
can cisco UC do this ?
any one can advise ?