AT&T asks FCC to investigate Google Voice

AT&T is urging the Federal Communications Commission to review the Google Voice call-forwarding system because it blocks outgoing calls to some phone numbers, the Wall Street Journal reports.

The network carrier also called into question Google's net neutrality double standard, its "noisome trumpeting" of the policy while it simultaneously limits traffic through Google Voice. The service prohibits users from calling adult lines and conference-call centers to keep costs down, Google says.

Google responded to the letter on its policy blog, stating that the web-based software is not subject to common carrier laws and that users still need a traditional phone service to use Voice. Lastly, Google says AT&T's net neutrality comparison "doesn't fly," since the FCC open Internet principles regulate broadband carriers, not software creators.

The FCC is reviewing the letter but has not commented whether or not it will investigate the situation.