Hi, I have attempted to set up a initially basic asterisk setup, comprising 1 x X100p and a TDM400P with TDM20B module. This is built on Asterisk 1.0 stable build, using Andy Powell's guide (http://www.automated.it/guidetoasterisk.htm), on a Tao Linux Version 1. My two Cisco 7940 phones (SIP ver 3-04-4-00) are plugged into the Cisco 837 router (4 ports), which is also dishing out DHCP, also plugged into the router is my Asterisk server. however I cannot seem to make a connection via my SIP setup, with the lines on the phones are still showing X beside the phone icon, which is stumping me as i cannot make or receive any calls. *CLI> sip show peers Name/username Host Dyn Nat ACL Mask Port Status fwd/290651 69.90.155.70 255.255.255.255 5060 Unmonitored 1002/1002 192.168.10.15 255.255.255.255 5060 Unmonitored 1001/1001 192.168.10.14 255.255.255.255 5060 Unmonitored Can anyone possibly point me towards a relevant guide? Or possibly point towards any obvious mistakes that i might have made. Thanks in advance.