Didn't recognize the number  so I didn't answer the call 951-363-0449.

As Da Prof said: Got a call from this unknown number.  I don't pick up unknown numbers - I wait for a voice-mail to see if they are worth a return call.  There was no voice-mail message left.

Telemarketer offering lower credit card interest rate.

Got a call from this number.  It's an automated message about lowering my credit card interest rate.  "final notice",  "Press 1 to transfer"...  I hung up.  Funny, not one of my creditors has the number they called on, it's my business line.  Obvious spam call.

Got two calls back to back I did not answer...no voice message left