Occasionally, it's hit-or-miss. You can spend time troubleshooting with Cox to reboot, reset, reprovision but from my experience, it's no guarantee it'll be permanently or temporarily fixed. It seems to be a roaming and haunting problem.
However, I haven't heard of problems for a while, but that could be two things. There either hasn't been problems or subscribers are just tolerating the hit-or-miss problem.
Hi MAB, there was a known issue impacting TV Caller ID earlier this week. We believe this issue has now cleared. If the TV Caller ID banner does not appear with incoming calls, please unplug the power from your cable receiver for 2 minutes and then plug it back in. Once the receiver completes the reboot cycle, test the TV Caller ID again. Please let us know if this doesn't resolve the problem! -Becky, Cox Support Forums Moderator