I have talked with Tech Support several times about why Caller Id will not work on my two 721's. This last time they told me it was a grounding issue. I checked everything and all appears well but still no Caller ID. By chance I have a 501 which I hooked up to see if Caller Id would work. I used my cell phone to call my home number and it worked fine. Hook the 721 back up and nothing.
Any ideas as too what is causing my problem(s)?
Thanks,
Any ideas as too what is causing my problem(s)?
Thanks,