Asterisk Interexchange - Managing calls in remote server wit

I have two servers with Asterisk Installed on it.
Both the servers were connected with PRI lines using Dahdi hardware.
I have one of the server in remote location(outside my country).
I have some application in my local server which generates dot call file and playback wav file.

My requirement is , I want the calls to be initiated in the remote server where the dot call file and the wave file is in the local server.

I suppose Inter Asterisk Exchange will help on this.Else share me any alternates which makes this happen.