My husband's dinc came on a newly activated line (555-555-0001). I went through the initial set up, played around a bit, then called customer service and had them swap numbers for me, so now the dinc is on (555-555-0002). After the number switch backup assistant gives me an error, telling me the number has changed, but not telling me what to do about it. I can't figure out how to fix this. Any suggestions?