This set up has been working well for us for sometime now. We are now moving Asterisk to  a stand alone server ( not installing it on the same box as asterisk ) but we are running into some issues. I have just made some changes to the Asterisk bind IP address and port and also set up Kamalio as a peer on asterisk. 

When I make an extension to extension call the calls are failing from the FROMASTERISK route ( call is getting cancelled ). Can someone let me know what changes I need to make to correct the issue? Some pointer will help.

Thank you,

Arun