I called Verizon before my trip to activate the international calling option, and was able to use my phone in China with no problems. Of course the data service didn't work; roaming.

Service was roaming, and overseas fees applied as well as the roaming fees. I think it was about $3.00 a minute; good thing I'm expensing it at work! I believe Verizon now has a plan for a few bucks a month that will reduce the cost to about $0.50 a minute. I'll have to check into it next time.

Sometimes I had to dial a coulple of times to connect correctly, but I could make calls to both local China numbers and US numbers (using the 001+area code+number). Phone rang on incoming calls with no problems.