3/01/17 12:21 PST  Tried again today, but this time ID shows as unknown.  Blocked last time so am guessing it only rang once and was diconnected.  Was unavailable at time of call.

Dead air.

There was a slight delay and an electronic sound, probably indicating that the call was being transferred to  a live representative who had just become available (if no one was available the call would have been dropped). The woman started talking fast about they were going to be in the neighborhood for the "Restoration Program." I told her to slow down and asked what the Restoration Program was. She said she'd get someone to talk to me (which was probably a lie) and then the line went dead.

Probably another scammer contractor trying to get into senior citizens' homes to pressure them into substandard and overpriced home improvement work. Like the following:
"arrested in October [2012] and face grand theft, money laundering, elder abuse, conspiracy to contract without a license, and aggravated white collar crime enhancement charges" at http://www.cslb.ca.gov/Newsletter/2012-Winter/scheme.asp

caller ID says CCI
telemarketing noises in background