Some of 's customers haven't been able get to their voice mail via the Internet telephony provider's Web site since Wednesday. "We're having voice mail issues right now," a Vonage spokeswoman wrote in an e-mail Thursday. According to postings in a Vonage chat room
, people attempting to get voice mail through Vonage's site got the message: "Customers may be experiencing an intermittent issue with logging into your Web account."
With more than 750,000 subscribers, Vonage is among the largest commercial providers of voice over Internet Protocol, which is software that allows Internet connections to double as inexpensive home phone lines.