I have a system running asterik 1.4 (elastix 1.6) and 8 E1 ports. We are generating calls to the network using call files. It works perfectly, but the only problem is the fact that asterisk will use/take the first available channels. We trigger the calls every 60 seconds, and our issue is that we never use the high channels as we always grab the first available. The carrier is complaining as we are causing some heavy usage on the first 4 E1... Can we tell asterisk to dial, or take the channels sequentially? or randomly? I'm not sure if I explain myself correctly. Thanks community.