Hi.In our company we used two XORCOM XR3000 in a cluster along with a AstriBank. We have a PRI connection which is terminated to Astribank.Clustering is generally preconfigured with XORCOM when we order. So can some body help me the basic configuration of FreePBX in these scenario like what we have to do to make incoming outgoing call through this PRI line to our call center, where to put my PRI landline phone number(like 046XXXXXX) in FreePBX etc.Actually I am new to these environment. We are using grandstream IP Phone.