Hi all. I strongly need your help. I want to connect 2 offices with elastix. I have 2 working Panasonic stations in each office, two 4-port Grandstream GXW4104 FXO gateways, and Asterisk PBX v188.8.131.52. There is a LAN between two offices. 1. How can this be realised? 2. Both offices has extensions in 101-120 range. How will they call to each other? I need any advice. Thanks in advance..