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Google Voice (formerly GrandCentral) is a telecommunications service by Google launched on March 11, 2009. Google Voice had some 1.4 million users in October 2009, 570,000 of whom used the service 7 days a week. This number has risen markedly since Google made the transition of its Google Voice service from 'invitation only' to be available to all Gmail subscribers. However, Google has not released a more recent number of users, claiming only that it is in the millions.
The service is configured and maintained by the user in a web-based application, styled after Google's e-mail service, Gmail, or through the service's Android and iOS apps. Google Voice currently[update] provides free PC-to-Phone calling and PC-to-PC voice and video calling worldwide between users of the Google Voice and Video Chat browser plugin (available for Windows, Intel-based Mac OS X, and Linux).
Users in the US[update] may place outbound calls to domestic and international destinations from their cell phone app, from the web-based application, or by dialling their Google Voice number. As of August 2011, users in many other countries also may place outbound calls from the web-based application to domestic and international phone numbers. Domestic and outbound calls to the US (including Alaska and Hawaii) and Canada are currently[update] free from the U.S. & Canada and $0.01 per minute from everywhere else. International calls are billed according to a schedule posted on the Google Voice website. For incoming calls, users must have an existing US telephone number to activate their own Google Voice phone number. Users must configure this and/or additional phone numbers that ring simultaneously when their Google Voice number receives a call. The user may answer and receive the call on any of the ringing phones or through the web-based app. The service provides a US phone number, chosen by the user from available numbers in selected area codes, free of charge to each user account. Inbound calls to this number are forwarded to other phone numbers of the subscriber. Received calls may be moved between configured telephones during a call.
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 users resident in the US[update]. In terms of product integration, transcribed and audio voicemails, missed call notifications, and/or text messages can optionally be forwarded to an email account of the user's choice. Additionally, text messages can be sent and received via the familiar email or IM interface by reading and writing text messages in Gmail or by adding contact's phone numbers in Google Talk respectively (PC-to-Phone texting).
Google, via Gmail currently[update] provides free PC-to-PC voice (and, optionally, also video, which has been around much longer) calling worldwide. As described above, Google Voice users in many countries may make low-cost calls to international phone numbers, and currently[update] may also make free PC-to-phone calls into North America (this service will remain free at least until the end of 2012). A Google Voice local phone number for incoming calls is currently[update] available only for users in the United States. Users may select a single US phone number from various area codes. Incoming calls to the number may ring simultaneously any of the user's configured phones or the account's Google Talk feature. Based on the calling number, or contact group (e.g., Family, Friends, Work), or on time of day, e.g., disabling a home phone during business hours and routing calls to mobile or business number, individual numbers may be configured to ring. The service also features voicemail with indexable automated voicemail transcription, accessible via a web browser, e-mail, or by phone. Google Voice provides automatic blocking of known numbers, e.g., telemarketers, the ability to switch lines in mid-call, differentiated voice mail greetings based on caller, SMS forwarding, and call recording. Additionally, customers of Gizmo5, a Session Initiation Protocol (SIP) service vendor now owned by Google, were allowed to forward calls to their Gizmo service which may be answered using a free computer application, a web application, or SIP-based telephone hardware, until Google discontinued Gizmo5 service after April 3, 2011.
Similar in concept, free Personal Numbering services have been available in the UK since 1993. It is also similar to the AT&T True Connections 500 service offered in the 1990s. AT&T's service required the direct involvement of AT&T to change the phone number list, while the Google service is user-configurable on the web application.
The original voice of GrandCentral and Google Voice belonged to actress and voice-over artist, Laurie Burke, but has been replaced with recordings by Kiki Baessell, a Googler who had no experience in professional voice-overs, but was chosen because of her pleasant, familiar voice.
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 Wesley Chan. After purchasing GrandCentral, Google appeared to have abandoned the project and very little information about it was released. Posters in the GrandCentral support forums complained frequently of the dearth of information about the service and the lack of customer support. An "open letter" in Salon.com by reporter Judi Sohn entitled "Will the Last One to Leave GrandCentral Please Turn Out the Lights?" reflected the frustration many of GrandCentral's early adopters had expressed in the GrandCentral forums. On March 11, 2009, the management of the service revealed that the team had been working on it throughout that period, apparently in secret, and that it was being rebranded "Google Voice". It was to keep most of the functionality originally offered in GrandCentral and add new features.
Google Voice was launched on March 11, 2009, based on GrandCentral, with new features, including voicemail transcriptions and SMS managing. Google transitioned former GrandCentral accounts to Google Voice and announced that the service would start accepting new members "within weeks" of the announcement. On June 25, 2009, NBC's Today Show stated that Google Voice would be available nationwide on that day. Google confirmed this in a Twitter message stating: "Google Voice on NBC Today Show. Invites to people on reservations list starting to go out today." The expansion has been limited to users queued on the invitation list. Users with paid-in balances also receive a limited number of invitation opportunities.
On July 1, 2009, Google Voice provided the option for users to change their service phone number for a US$10 fee.
On September 15, 2009, GrandCentral calling services were shut down. Subscribers who use the website could still log into the site to retrieve old messages and data. After termination of Grandcentral phone services, users who haven't moved over to Google Voice were still advised to upgrade their account to Google Voice.
On November 12, 2009, Google announced that it had acquired Gizmo5 for a reported US $30 million in cash. A major effect of this announcement is that Gizmo5 has suspended new signups until it is re-launched by Google. Google was reported to be working on a desktop application, though rumors now circulate that the project has been scrapped in favor of a browser-based solution. In 2011, Gizmo5 site closed servicing its current members and as of January 2012, the website is no longer available.
On June 22, 2010 Google Voice dropped the requirement for invitations to become a subscriber, and the service became available to anyone in the USA with a Google account.
Rejection from iPhone App StoreEdit
On July 27, 2009, Apple Inc. rejected a Google Voice app that had been submitted by Google six weeks earlier. Other apps created for use with Google Voice, such as GVdialer, GV Mobile and VoiceCentral, were removed from the App Store. Apple states that the reason for the rejection and removals is that these apps replaced certain iPhone functions and features.
A Google spokesman released this statement on the matter:
We work hard to bring Google applications to a number of mobile platforms, including the iPhone. Apple Inc. did not approve the Google Voice application we submitted six weeks ago to the Apple App Store. We will continue to work to bring our services to iPhone users – for example, by taking advantage of advances in mobile browsers.
The Federal Communications Commission (FCC) has opened an inquiry regarding the rejection of Google Voice for the iPhone. "The FCC asked why Apple rejected the Google Voice application for the iPhone and removed related 'third-party applications' from its store." The FCC has also requested Google to submit a letter describing the application of Google Voice. "The request is part of a broader-ranging inquiry by the commission on exclusive deals between cell phone carriers and handset manufacturers for hot phones."
In their response to the FCC, Google stated that the Google Voice application uses the carrier's voice network to place phone calls, dispelling misconceptions that it is a Voice over Internet Protocol application. AT&T stated that they had no role in approval or rejection of the Google Voice application. Apple stated that they had not rejected the application but were continuing to examine it. One argument against allowing the Google Voice app on the iPhone is that they are concerned that it replaces the iPhone user interface with its own; however many dialers and messaging apps are available from the app store.
As a result of rejection from the Apple Store, Google released its Google Voice iPhone application as a web app in January 2010, and certain apps like GV Mobile are available through Cydia on jailbroken iPhones.
In September 2010, Sean Kovacs, creator of the app GV Mobile +, announced on his Twitter that Apple had re-accepted the application, and it has since been available for purchase on the Apple App Store. This is the second Google Voice service app available in the Apple's official application store for a year and a half, released just a day after "GV Connect" had been available.
In November 2010, the official iPhone application became available in the App Store in the US. Google Voice is still not available in the App Stores outside USA.
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Features of Google Voice, many retained from GrandCentral, include:
- A single Google forwarding number to all of the user's phones
- Unlimited free calls and SMS within the US and Canada, up to three hours in individual length.
- Calling international phone numbers with rates starting at US$0.02 per minute
- Call screening. Announcement of callers based on their number or by an automated identification request for blocked numbers
- Listening in on someone's recording of a voice message before taking a call (press 2 while answering, * to "pick up")
- Blocking calls from specified numbers
- Send, receive, and store SMS online
- Answering incoming calls on any configured phone
- Call routing. Selection of phones that should ring based on calling number
- Voicemail transcripts. Reading of voicemail messages online
- Listening to voicemail online or from a phone
- Notification of voicemail messages via email or SMS
- Personalized greetings based on calling number
- Forward or downloading of voicemails
- Conference calling (press 5 when answering call)
- Call recording and online archiving (press 4 while on a call)
- Switching of phones during a call
- Viewing the web inbox from a mobile device/phone
- Customize preferences for contacts by group
- Ability to change your number for a fee
- Ability to port your mobile number for a fee
- Specifying an existing phone number instead of the Google Voice number on initial setup for use with limited functionality, such as some voicemail functions. and using the voice mail system for the user's phone number (mobile devices only).
- The inability to use short codes with Google Voice prevents exorbitant fees from being charged due to a single mis-dial.
While many customers in countries other than the United States have been grandfathered into Google Voice services, the features are reduced and often cost very small fees to call their own country. Currently[update] Google Voice PC-to-phone calling works only for calls into North America or for domestic or international calls from North America; Google plans to implement this for other countries, but a time frame has not been released. A US telephone number is required to obtain a Google Voice phone number for redirecting incoming calls.
Users in Hawaii and Alaska were originally only minimally supported. No local area codes were available until October 3, 2009, and charges were required for calls to those areas until October 7, 2009.
Caller line identificationEdit
As a call forwarding service, Google Voice also forwards the caller line identification (CLID or caller ID) of incoming calls to the user's telephone service. In order to correctly transmit their own CLID, based on the Google Voice number, the call must be initiated with Google Voice rather than with the physical handset.
The caller's Google Voice number is used as the CLID on outgoing calls when a call is placed by calling their own Google Voice number and using the service's menu choices, or when the web-based account portal is used to place a call. With the introduction of the Google Voice application on iPhone, Android and Blackberry phones, Google Voice users can directly dial from the Google Voice app with their Google Voice number as the outgoing CLID.
Mobile phone applicationsEdit
Google Voice applications for Google Android, BlackBerry and iPhone can automatically place outgoing calls and texts via the user's Google Voice service. They will also manage incoming texts and calls should the user desire. This allows Google Voice subscribers to send and receive free text messages on their mobile phones without paying for a texting plan or incurring service charges from their mobile provider so long as all texts are sent and received through one's Google Voice number and not the number provided by the cell phone company.
Although Google Voice's iPhone app is not available outside of the United States, several other Google Voice clients exist for users outside the USA. For example Talkatone's iPhone client is available in Canada as well as the US.
Google Voice does not officially support SMS to phone numbers outside of the United States. As of 1 2010[update] Google had purposely blocked International texts, with the intention of reintroducing the service once billing systems are in place.
Integration into Gmail/Google TalkEdit
When Google Voice was offered during beta testing, Gmail Labs offered an add-on so users could listen to their voicemails in their Gmail inbox. Since August 26, 2010, U.S. Gmail users may place calls to the U.S., Canada, and international destinations from within Gmail. Calls to U.S. and Canadian phone numbers are free, while calls to international destinations cost as low as 2 cents per minute. This is possible with the help of a voice and video chat plugin that users download and install so their browsers can take advantage of cameras, microphones, and speakers installed in the computer. Additionally, all of these features are being made available to Google Apps customers as Google transition all of the apps accounts (gmail, etc. within your own domain name instead of google.com) to be regular Google accounts. The account transitions should be complete by the end of 2010 and domain administrators are able to initiate the transition from their dashboard immediately if they so desire. If the user has a Google Voice account, the account phone number is used as caller identification relayed to the destination.
Users can also opt to have their text messages, transcribed voicemails (including an audio attachment), and/or missed calls forwarded to their Gmail account. Forwarded text messages emails can be replied to as if they were regular emails. Contacts' SMS capable phones can also be added to the user's Gmail address book or Google Talk buddy list so that text conversations can be initiated and sustained through these interfaces.
No emergency callingEdit
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. Google previously recommended having "an alternative means of accessing 911 or similar emergency services."
Google Voice permits Voice Over IP (VoIP) connections through Gmail or Google Talk, but offers no simple way to communicate with users of other VoIP services, e.g. by direct connection between IP addresses or SIP gateway. However, some users are able to receive VoIP calls with their Google Voice accounts at the SIP address "sip:+email@example.com" (where xxxxxxxxxx is their US Google Voice number).
Software manufacturers such as PCPhoneSoft.com have developed downloadable applications like the "GVJack" App that converts magicJack dongles over to use Google Voice for a fully featured landline styled calling experience.
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.
Call Forwarding and VoicemailEdit
If the phone to which a call is forwarded does not connect within 25 seconds, then calls are routed to Google Voice's voicemail. Users who want calls to be picked up by their home, work, or mobile phone voicemail systems or answering machines must turn off call screening in Google Voice and make sure that their phone's voicemail systems or answering machines pick up before 25 seconds.
Google Voice provides no direct support contact . You may get support from the help site which has information on known issues and other common problems. Beyond that Google Provides Help Forums for you to contact "Please visit our help forum to get additional help from Google guides, top contributors, and other Google Voice users."
Partners and infrastructureEdit
Google Voice's partners that provide phone numbers, call-termination, call-routing, and other infrastructure include:
- Level 3 Communications
- Global Crossing
- Broadvox Communications
- Pac-West Telecom
- IBasis for international outbound call routing
In 2009, Google reserved 1 million telephone numbers with Level 3 Communications which were presumed to be for Google Voice.
Dispute between AT&T and Google about call blockingEdit
Main Article: Role in dispute between AT&T and Google
AT&T petitioned the U.S. Federal Communications Commission (FCC) that Google should be required to allow calls to high-cost destinations. Google responded that it is not obligated to allow these calls.
- Comparison of VoIP software
- Public switched telephone network
- Level 3 Communications
- Traffic pumping
- Caller ID spoofing
- ↑ Chan, Wesley (July 2, 2007). "Official Google Blog: All aboard". Google. http://googleblog.blogspot.com/2007/07/all-aboard.html. Retrieved March 12, 2008.
- ↑ "Business Week: 1.4 million Google Voice users". ZD Net. http://www.zdnet.com/blog/btl/business-week-14-million-google-voice-users-global-push-in-the-works/26813. Retrieved October 4, 2010. ""Google confirms""
- ↑ "Google voice and video chat". http://www.google.com/chat/video. Retrieved January 3, 2010.
- ↑ 4.0 4.1 4.2 4.3 Pogue, David (March 11, 2009). "One Number to Ring Them All". The New York Times. http://www.nytimes.com/2009/03/12/technology/personaltech/12pogue.html.
- ↑ "Google Voice Blog". Google. August 2, 2011. http://googlevoiceblog.blogspot.com/2011/08/calling-from-gmail-now-in-38-languages.html. Retrieved August 4, 2011. "Calling from Gmail now in 38 languages, with lower rates to over 150 destinations."
- ↑ Paquet, Vincent (October 7, 2009). "Google Voice Blog". Google. http://googlevoiceblog.blogspot.com/2009/10/free-calling-now-to-hawaii-and-alaska.html. Retrieved October 7, 2009. "When we launched Google Voice, we offered free calling to the continental US. We've just expanded this to all 50 states by adding free calling to Alaska and Hawaii."
- ↑ "Google Voice: Calling Rates". Google Voice website. https://www.google.com/voice/rates#C. Retrieved July 28, 2010. ""Canada: $0.00""
- ↑ "Google Voice: Calling Rates". Google. https://www.google.com/voice/rates?hl=en_US¤cy=USD. Retrieved December 25, 2011.
- ↑ "Google Voice: Calling Rates". Google Voice website. https://www.google.com/voice/rates#C. Retrieved July 28, 2010.
- ↑ "Google Voice". http://www.google.com/googlevoice/about.html. Retrieved August 21, 2009.
- ↑ "Official Gmail Blog". Gmailblog.blogspot.com. http://gmailblog.blogspot.com/2011/12/free-calling-within-us-and-canada.html. Retrieved December 25, 2011.
- ↑ "Google Voice invitation request,". Google. https://services.google.com/fb/forms/googlevoiceinvite/. Retrieved August 3, 2009.
- ↑ "Gizmo5 browser-based telephony application". http://www.gizmocall.com/. Retrieved September 19, 2009.
- ↑ "Google Voice Blog: The new voice of Google Voice". Google. June 28, 2010. http://googlevoiceblog.blogspot.com/2010/06/new-voice-of-google-voice.html. Retrieved July 6, 2010.
- ↑ For example, see Sohn, Judi (August 11, 2008). "Ready to Ditch GrandCentral? Take a Look at PhoneFusion One". Web Worker Daily. http://webworkerdaily.com/2008/08/11/ready-to-ditch-grandcentral-take-a-look-at-phonefusion-one/. Retrieved December 8, 2009. which mentions the problem. The original GrandCentral support forum is no longer online, having been replaced by a Google Groups forum with newer content.
- ↑ Sohn, Judi (January 26, 2009). "Will the Last One to Leave GrandCentral Please Turn Out the Lights?". Salon.com. http://www.salon.com/tech/giga_om/web_life/2009/01/26/will_the_last_one_to_leave_grandcentral_please_turn_out_the_lights/index.html. Retrieved December 8, 2009.
- ↑ 17.0 17.1 17.2 "Moving to Google Voice!". Official Google Voice Blog. March 12, 2009. http://googlevoiceblog.blogspot.com/2009/03/moving-to-google-voice.html. Retrieved March 13, 2009.
- ↑ Broida, Rick (March 12, 2009). "GrandCentral Becomes Google Voice, Adds Features". BNET. http://blogs.bnet.com/businesstips/?p=2976. Retrieved August 30, 2009.
- ↑ Peng, Dennis (March 18, 2009). "ooma and Google Voice". Ooma. http://blog.ooma.com/2009/03/18/ooma-and-google-voice/. Retrieved August 30, 2009.
- ↑ One number for office home and cell (Television). Today. 2009. http://today.msnbc.msn.com/id/26184891/vp/31542107#31542107.
- ↑ "Google Voice Twitter feed on 6/25/09". Twitter. June 25, 2009. http://twitter.com/googlevoice/status/2327525856. Retrieved December 25, 2011.
- ↑ Walker, Craig. (2009-06-25) Official Google Blog: Google Voice invites on their way. Googleblog.blogspot.com. Retrieved on December 7, 2010.
- ↑ "Google Voice Help- Settings: Changing your number". Google. http://www.google.com/support/voice/bin/answer.py?hl=en&answer=115114. Retrieved December 25, 2011.
- ↑ Name *. "GrandCentral will be shutting down as of today". Gadgetell.com. http://www.gadgetell.com/tech/comment/grandcentral-will-be-shutting-down-as-of-today/. Retrieved December 25, 2011.
- ↑ "Google Voice Twitter feed on 9/14/09". Twitter. September 14, 2009. http://twitter.com/googlevoice/status/3995477234. Retrieved December 25, 2011.
- ↑ "Google welcomes Gizmo5". Google Voice Blog. http://googlevoiceblog.blogspot.com/2009/11/google-welcomes-gizmo5.html. Retrieved November 12, 2009.
- ↑ http://techcrunch.com/2009/11/09/exclusive-google-has-acquired-gizmo5/
- ↑ Kovitz, Steven (November 14, 2009). "It's Official – Google Acquires Gizmo5!". Google Voice Secrets. http://www.googlevoicesecrets.com/its-official-google-acquires-gizmo5. Retrieved November 15, 2009.
- ↑ Google Voice Desktop App Launch Delayed, May Be Scrapped. Techcrunch.com (2010-06-11). Retrieved on December 7, 2010.
- ↑ Walker, Craig. (2010-06-22) Google Voice Blog: Google Voice for everyone. Googlevoiceblog.blogspot.com. Retrieved on December 7, 2010.
- ↑ Jason, Kincaid (July 27, 2009). "Apple Is Growing Rotten To The Core: Official Google Voice App Blocked From App Store". TechCrunch. http://www.techcrunch.com/2009/07/27/apple-is-growing-rotten-to-the-core-and-its-likely-atts-fault/. Retrieved August 30, 2009.
- ↑ Johnson, Fawn; Schatz, Amy (August 1, 2009). "FCC Opens Inquiry of Apple's Ban of Google Voice". The Wall Street Journal. http://online.wsj.com/article/SB124908121794098073.html. Retrieved August 30, 2009.
- ↑ Whitt, Richard S. (August 21, 2009). "Google's Response to FCC Inquiry Regarding Apple's Rejection of the Google Voice for iPhone Application" (PDF). Federal Communications Commission. http://wireless.fcc.gov/releases/8212009_google_filing_iPhone_Inquiry_PUBLIC_REDACTED.pdf. Retrieved August 30, 2009.
- ↑ Cicconi, James W. (August 21, 2009). "AT&T Response to Wireless Telecommunications Bureau Letter, DA 09- 1737 (July 31, 2009); RM-11361; RM-11497" (PDF). Federal Communications Commission. http://wireless.fcc.gov/releases/8212009_ATT_Response_FCC_iPhone_Letter.pdf. Retrieved August 30, 2009.
- ↑ "Apple Answers the FCC's Questions". Apple.com. July 31, 2009. http://www.apple.com/hotnews/apple-answers-fcc-questions/. Retrieved December 25, 2011.
- ↑ Novelli, Catherine A. (August 21, 2009). "Apple's Response to the Wireless Telecommunications Bureau's Questions of July 31, 2009" (PDF). Federal Communications Commission. http://wireless.fcc.gov/releases/8212009_Apple_Response.pdf. Retrieved August 30, 2009.
- ↑ "First look: Google Voice's improved Web app for iPhone", Ars Technica, January 26, 2010, http://arstechnica.com/apple/news/2010/01/hands-on-with-google-voices-improved-web-app-for-iphone.ars
- ↑ Kovacs, Sean (July 28, 2009), "Wow", Sean Kovacs, http://www.seankovacs.com/index.php/2009/07/wow/
- ↑ Greg Kumparak (September 17, 2010), "Apple Finally Lets A Google Voice Application Into The App Store (Again)", Andreas Amann, http://www.mobilecrunch.com/2010/09/17/apple-finally-approves-a-native-google-voice-application/
- ↑ Trey (September 18, 2010), "GV Mobile + Accepted into the App Store", Sean Kovacs, http://www.ifans.com/blog/8480/
- ↑ "Google Voice for iPhone", Google Voice, November 16, 2010, http://googlevoiceblog.blogspot.com/2010/11/google-voice-for-iphone.html
- ↑ Paquet, Vincent (October 26, 2009). "Use Google Voice with your existing number". Google. http://googleblog.blogspot.com/2009/10/use-google-voice-with-your-existing.html. Retrieved October 26, 2009.
- ↑ Walker, Craig (October 26, 2009). "Use Google Voice with your existing number". Google. http://googleblog.blogspot.com/2009/10/use-google-voice-with-your-existing.html. Retrieved October 26, 2009.
- ↑ Can Google Voice be used in Canada? – Google Voice Help. Google.com (2009-07-05). Retrieved on December 7, 2010.
- ↑ "Google Voice looks to transform your phone –". Chicago Tribune. Archived from the original on August 27, 2009. http://web.archive.org/web/20090827134707/http://www.chicagotribune.com/business/chi-tc-biz-tech-google-0817-0823aug24,0,4041367.story. Retrieved December 25, 2011.
- ↑ "NEW GV FEATURE: Free calls to Hawaii and Alaska (October 3, 2009)". Google Voice Help Forum. http://www.google.com/support/forum/p/voice/thread?tid=42e8831db4f7bf82&hl=en. Retrieved October 7, 2009.
- ↑ "Free calling now to Hawaii and Alaska – Google Voice Blog". Googlevoiceblog.blogspot.com. http://googlevoiceblog.blogspot.com/2009/10/free-calling-now-to-hawaii-and-alaska.html. Retrieved December 25, 2011.
- ↑ Krazit, Tom (June 15, 2009). "Google Voice: Bring us your number?". News.cnet.com. http://news.cnet.com/8301-17939_109-10264936-2.html. Retrieved December 25, 2011.
- ↑ "YouTube – Google Voice – Place calls". Youtube. http://www.youtube.com/watch?v=sHIWUw6cf1U. Retrieved December 25, 2011.
- ↑ "Google Mobile". http://www.google.com/mobile/products/voice.html#p=default. Retrieved July 15, 2009.
- ↑ Gary Ng (December 7, 2010), Google Voice on iPhone for Canadian Users, http://www.iphoneincanada.ca/reviews/talkatone-voip-app-free-iphone-google-talk-voice-calls-over-3g-wifi/
- ↑ International Text Messaging : Basics – Google Voice Help. Google.com. Retrieved on December 7, 2010.
- ↑ International SMS sending/receiving as of 06/01 – Google Voice Help. Google.com. Retrieved on December 7, 2010.
- ↑ Listen to Google Voice Messages in Gmail. Googlesystem.blogspot.com (2009-09-10). Retrieved on December 7, 2010.
- ↑ Schriebman, Robin. (2010-08-25) Call phones from Gmail – Official Gmail Blog. Gmailblog.blogspot.com. Retrieved on December 7, 2010.
- ↑ Google. Google. Retrieved on December 7, 2010.
- ↑ Google. Google. Retrieved on December 7, 2010.
- ↑ "Google Voice Legal Notices". Google. http://www.google.com/googlevoice/legal-notices.html. Retrieved December 25, 2011.
- ↑ "Posting about VoIP in Google help forums". Google. http://www.google.com/support/forum/p/android/thread?tid=43c479f4a43b63b6&hl=en. Retrieved December 25, 2011.
- ↑ "Google Voice Now Offers SIP Addresses For Calling Directly Over IP". http://www.disruptivetelephony.com/2011/03/google-voice-now-offers-sip-addresses-for-calling-directly-over-ip.html. Retrieved January 4, 2012.
- ↑ "Google Voice Can Now Be Used With Any Old MagicJack". voxilla.com. February 25, 2012. http://forum.voxilla.com/threads/google-voice-can-now-be-used-with-any-old-magicjack.32280/. Retrieved February 25, 2012.
- ↑ "2011 VoIP Device of the Year: Obihai OBi110 for Google Voice". Nerdvittles.com. February 3, 2011. http://nerdvittles.com/?p=720. Retrieved December 25, 2011.
- ↑ 63.0 63.1 "Google Voice: Preventing voicemail from picking up calls". Google Voice website. https://support.google.com/voice/bin/answer.py?hl=en&answer=115110&topic=1708439. Retrieved December 10, 2011.
- ↑ "Contacting Support – Google Voice Help". http://support.google.com. http://support.google.com/voice/bin/request.py?contact_type=contact_policy. Retrieved April 5, 2012.
- ↑ Google, Google. "Google". Google. http://support.google.com/voice/bin/static.py?hl=en&page=ts.cs&ts=1279544. Retrieved April 5, 2012.
- ↑ Fontana, John (June 20, 2009). "Google Grabs 1 Million Phone Numbers for Google Voice". PCWorld. http://www.pcworld.com/businesscenter/article/166978/google_grabs_1_million_phone_numbers_for_google_voice.html. Retrieved December 20, 2010.
- ↑ Siegler, MG (September 25, 2009). "AT&T Goes After Google Voice, Net Neutrality And Double Standards (Full Letter To FCC)". TechCrunch. http://techcrunch.com/2009/09/25/att-goes-after-google-voice-net-neutrality-and-double-standards-full-letter-to-fcc/. Retrieved July 24, 2010.
- ↑ Kincaid, Jason (October 9, 2009). "AT&T Complaint Prompts FCC Letter To Google Inquiring About Google Voice". TechCrunch. http://techcrunch.com/2009/10/09/att-complaint-prompts-fcc-letter-to-google-inquiring-about-google-voice/. Retrieved July 24, 2010.
- ↑ "10-28-09 Google Voice Letter to FCC". Scribd. October 28, 2009. http://www.scribd.com/doc/21776911/10-28-09-Google-Voice-Letter-to-FCC. Retrieved July 24, 2010.
- Google Voice
- Technical and Business Aspects:
- Other smartphone clients: