Update: I learned you don't need EC up in DTE status on the video modules to conduct calls. The issue was resolved simply because during the relocation, circuit patch cords were flipped around and didn't match the DID associated with the T1 port. I'm now able to call out at any rate. Strangely though, I'm having issues with my dial isolators (CISSecure DTD-DIAL-04). Before relocating the Adtran, I was able to call using the DIs. Now, when calling outbound, no messaging on the Adtran registers in the event log. I'm reaching out to CISSecure for technical support but if anyone has ideas, I'm open to suggestions.