Hello & Welcome to Just Answer,
I'm Greg and will do my best to assist you today.
Sorry I didn't see your question earlier and to hear of any issue you are having with your phones.
To help you with this issue, may I ask:
1) When you say the Bell folks "changed the line & equipment", Did they actually visit your location and then TEST to do that?
2) Do you have ANY other Caller ID phones in your location to that do work properly?
3) What exactly is NOT WORKING with the Caller ID? That is, is there NO INFORMATION AT ALL - for ALL incoming calls, or is something showing that is "garbled", etc.?
Please REPLY using the box below and the SEND button.
NOTE: If you see ANY requests for "additional services" - such as a phone call - please understand that these are sent BY THE SITE (and not me), and I am NOT available by phone at the moment.
Feel free to DECLINE any such offers, and continue in this text/chat form.