It's becoming a bizarre issue, I'm running off an IP500 V4.1.9. Both hitting the redial button twice as well as hitting redial and then choosing the number both come up with "incompatible" on the display. Internal numbers work fine. I have "91" in the prefix field in the manager, but I dont think it is causing the problem. I've tried rebooting the IP500 via software and physical attempt. Grabbing a number on the log works fine as well. Anyone have any suggestions??