Google Voice is a telephone service that provides a U.S. phone number to Google Account customers in the U.S. and Google Workspace (G … 詳細

Origin
GrandCentral, founded in 2005 by Craig Walker and Vincent Paquet with funding by Minor Ventures, was acquired by Google on … 詳細

No emergency calling
Google Voice refers to itself as an "enhanced call management application" and as such "is not capable of placing or receiving emergency services calls." Attempting to dial 911 in the U.S. indicates that the number is not valid. 詳細

AT&T petitioned the U.S. Federal Communications Commission (FCC) to require Google (as it requires POTS providers) to allow calls to … 詳細

Google provides free PC-to-PC voice calling worldwide. As described above, Google Voice users in many countries may make low-cost calls … 詳細

Features of Google Voice, many retained from GrandCentral, include:
• Calling international phone numbers with rates starting at US$0.01 … 詳細

Google Voice's partners that provide phone numbers, call-termination, call-routing, and other infrastructure include:
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