Caller id said "847".  

Message on voicemail was: "Hi, this is Congressman Jason Altmire. Tomorrow night I'm holding a live telephone town hall to discuss some of the important issues facing our country. You'll receive the invitation phone call around 7:30:00PM to join the conversation. All you have to do is stay on the line when you receive the call. I'll be taking your questions live throughout the call. I hope you can join me tomorrow night for telephone town hall. If you have any questions you can call my office at 724-378-0928. Thank you"

I think I'll be on the line asking Jason to quit calling me.  I'd urge you to do the same thing.  If we all complain about annoying calls like this, maybe he'll get the hint.