Well, we just got another one too, on DHs cell phone. We also got a postcard in the mail yesterday. The postcard was definitely pointed to a supporter/contributor. But, we're not sure about the phone calls because DH put his cell number on his voter registration (that's where his call came in to) and the other call came to the house which is the number on my registration. We're both super-voters.
Postcards went out to all donors as their 'thank you' letter. Phone calls are definitely going out to republican voters