Who called from 3128782124

My wife called me from home on 6/3/2010.  Caller ID on my work land line showed 312-878-2124 even though that is not my home phone #.  This is the first time it happened.  She calls me at work frequently and caller ID always shows my correct phone #, except for this time.

Do you use Vonage for your home phone service?  We do and I've been getting this phone number on my work caller ID as well.

got called 4 times in a row; left messages on 3rd and 4th times, but when i listened to them, they were all garbled electronic sound.

i don't pickup numbers not in my contact list.

MARKED SPAM.

I have same problem calling from my work number, which is the 516 area code. Caller ID shows up with this number, 312-878-2124. Service is from Cablevision, so different provider from other post. Very strange.

got a call from (312) 878-2124, called back and got no answer, instead i got a NETWORK FAILURE message.