Unable to get Cisco 7970's to register

hehe, then don't dial 3 Image may be NSFW.
Clik here to view. you need to setup your dialplan "exclusively" by MSD (most significant digit) , both in the endpoint and FreePBX. If your dialplan is "closed" in other words, if there is no ambiguous route, then the dial will be unimpeded, if not you will need to wait for the default "digit timeout" by default 5 seconds.