Vonage formal complaints to FCC of ISP VoIP call blocking

Vonage complains to FCC about ISPs blocking their Voice over IP calls. This is done by port blocking, which prevents Voice over IP calls from successfully transmitting throug the ISP network.

"Internet phone provider Vonage said it's asked U.S. utility regulators to investigate allegations that a "major" broadband operator is deliberately blocking Internet phone calls.

Any investigation and its findings will add more tension to the relationships between providers of high-speed Internet and voice over Internet Protocol (VoIP), software that lets Internet connections double as inexpensive phone lines.

Vonage recently met with Federal Communications Commission representatives, said Vonage spokeswoman Brooke Schulz, to discuss an instance of "egregious, alarming and harmful port blocking." Port blocking is when Internet providers prevent traffic of certain kinds from traveling through their Internet Protocol (IP) networks."

read more: Vonage says broadband provider blocks its calls