Avaya Partner programming tips: Find your extension number.

[bccabdispatch]

I could really use some help. We have this system in the office and we lost power for about 15 minutes. The batteries were dead and now the phone only rings once and the system sends them to voicemail. We have three lines but two lines will lite up per line. Since we don't know which one has the call we have to push them both until we get them. How can we get the phonse back to normal?