Google Voice

Grand Central
Google Voice is a telephony service that provides call forwarding and voicemail services, voice and text messaging, as well as U.S. and international call termination for Google Account customers in the U.S. and Canada.wikipedia
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Google Hangouts

HangoutsGoogle+ HangoutGoogle Hangout
Google Account customers in most other countries other than the U.S. and Canada may only access the call termination services through the integration with Google Hangouts.
Google has also stated that Hangouts is designed to be "the future" of its telephony product, Google Voice, and has already integrated some of the capabilities of Google Voice into Hangouts.


There are several competing virtual number services, such as eVoice.
A competitor to eVoice is Google Voice.

Google Talk

Google ChatGTalkchat
Additionally, text messages can be sent and received via the familiar email or IM interface by reading and writing text messages in numbers in Google Talk respectively (PC-to-Phone texting).
In order to receive calls, however, the user must upgrade to a full Google Voice account.

Speech recognition

voice recognitionautomatic speech recognitionvoice command
Many other Google Voice services—such as voicemail, free text messaging, call history, conference calling, call screening, blocking of unwanted calls, and voice transcription to text of voicemail messages—are also available to.
In 2015, Google's speech recognition reportedly experienced a dramatic performance jump of 49% through CTC-trained LSTM, which is now available through Google Voice to all smartphone users.


Previously, customers of Gizmo5, a Session Initiation Protocol (SIP) service vendor acquired by Google, were allowed to forward calls to their Gizmo service which may be answered using a free computer application, or a web application, or SIP-based telephone hardware.
Prior to this acquisition, Gizmo5 had a working relationship with GrandCentral (now Google Voice) for years.

Obihai Technology

Hardware manufacturers such as Obihai Technology have created devices that enable the home user to use conventional wired telephone(s) to place and receive calls over their broadband connection through Google Voice, as well as other service providers.
Obihai Technology manufactures analog telephone adapters which support SIP (session initiation protocol), XMPP and Google Voice compatible Internet telephony.

Minor Ventures

GrandCentral, founded in 2005 by Craig Walker and Vincent Paquet with funding by Minor Ventures, was acquired by Google on July 2, 2007, for US$95 million in a transaction led by Miles Agha.
GrandCentral — A web-based service allowing users to use a single phone number with multiple devices; acquired by Google in July 2007, relaunched in March 2009 as Google Voice.

Traffic pumping

call to some expensive, rural locationlower wholesale costseveral cents a minute higher
Traffic pumping
, traffic pumping is the subject of an ongoing legal and regulatory dispute involving AT&T, Google Voice, rural phone carriers, and the U.S. Federal Communications Commission (FCC).

Broadvox Communications

Broadvox Communications
In October 2009, Documents were released by the FCC regarding Google Voice and details pertaining to growth and expansion of Google's Voice Product.

Bandwidth (company)

Bandwidth Inc. manages the assignment of telephone numbers for Google Voice— a carrier search on a Google Voice number, for example, will indicate that the carrier's identity is Bandwidth Inc.

List of mergers and acquisitions by Alphabet

Acquiredacquired by Alphabet/Google on May 4, 2015.acquired by Google
Other acquisitions include web application company JotSpot, which became Google Sites; Voice over IP company GrandCentral, which became Google Voice; and video hosting service company Next New Networks, which became YouTube Next Lab and Audience Development Group.

Wesley Chan

Wesley Chan was an early product innovator at Google Inc., best known for founding and launching Google Analytics and Google Voice, and building Google’s early advertising system.

The creator of, Craig Walker, is also known for being the creator of Google Voice and Yahoo! Voice.

Criticism of Apple Inc.

Applecriticisms of Applecult-like
Apple has been criticized over attempting to prevent iPhone users from using the Google Voice application by disabling it on the iPhone.


The app was quickly compared to other apps, such as Google Voice that have had their app under review for a number of months by Apple's review team.

List of Google products

Google's various servicesGoogle Maps MobileGoogle products
Google Voice (United States only) – VoIP system. Google Voice provides a phone number but is not the last mile provider. It includes a follow-me service that lets users forward their Google voice phone number to simultaneously ring up to 6 phone numbers. It also features a unified voice mail service, SMS and free outgoing calls via Google's "click2call" and 3rd party dialers.

Wait what

He asked fans to call and leave him voicemails at a Google Voice number (347-WTWHT-01) to be sampled on the record, and in two weeks received messages from dozens of countries that he cut up to create the intro and interludes on the mixtape.

Wendell Brown

He invented techniques such as voicemail-to-email, visual voicemail, and enhanced caller ID, innovations that are considered some of the earliest "apps," and which were later deployed by Google Voice and Apple.

Switch Communications, Inc.

Prior to that, Craig was CEO of Grand Central (acquired by Google in 2007 and now Google Voice), the CEO of Dialpad Communications (acquired by Yahoo! in 2005 and now Yahoo! Voice), and was previously a venture capital investor at Telesoft and a corporate and securities attorney.

Chris Shipley

During her tenure as executive producer, Shipley introduced companies including TiVo, VMWare,, GrandCentral, and Ribbit to the audiences at her conferences.

Commercial augmented reality

To bring complete interactivity in AR systems, different input devices are mandatory such as keyboards for textual inputs, speech recognition systems like Siri, Cortana, Google Voice, and so on, gloves stylus, pointers, and other body wears with sensors to provide body gesture inputs, eye movement detection sensors, and hardware.